Don't manually construct strings. It doesn't work for localization.

src/VisualStudio/Core/Def/Implementation/PreviewPane/PreviewPaneService.cs

@@ -81,9 +81,11 @@ private static Uri GetHelpLink(DiagnosticData diagnostic, string language, strin
             // We make sure not to use Uri.AbsoluteUri for the url displayed in the tooltip so that the url displayed in the tooltip stays human readable.
             if (helpLink != null)
             {
-                helpLinkToolTipText =
-                    string.Format(ServicesVSResources.Get_help_for_0_1_2_3, diagnostic.Id,
-                        isBing ? ServicesVSResources.from_Bing : null, Environment.NewLine, helpLink);
+                var prefix = isBing
+                    ? string.Format(ServicesVSResources.Get_help_for_0_from_Bing, diagnostic.Id)
+                    : string.Format(ServicesVSResources.Get_help_for_0, diagnostic.Id);
+
+                helpLinkToolTipText = $"{prefix}\r\n{helpLink}";
             }
 
             return helpLink;

src/VisualStudio/Core/Def/ServicesVSResources.Designer.cs

@@ -860,15 +860,6 @@ internal class ServicesVSResources {
             }
         }
         
-        /// <summary>
-        ///   Looks up a localized string similar to  from Bing.
-        /// </summary>
-        internal static string from_Bing {
-            get {
-                return ResourceManager.GetString("from_Bing", resourceCulture);
-            }
-        }
-        
         /// <summary>
         ///   Looks up a localized string similar to Generate Type.
         /// </summary>
@@ -888,11 +879,20 @@ internal class ServicesVSResources {
         }
         
         /// <summary>
-        ///   Looks up a localized string similar to Get help for &apos;{0}&apos;{1}{2}{3}.
+        ///   Looks up a localized string similar to Get help for &apos;{0}&apos;.
+        /// </summary>
+        internal static string Get_help_for_0 {
+            get {
+                return ResourceManager.GetString("Get_help_for_0", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Get help for &apos;{0}&apos; from Bing.
         /// </summary>
-        internal static string Get_help_for_0_1_2_3 {
+        internal static string Get_help_for_0_from_Bing {
             get {
-                return ResourceManager.GetString("Get_help_for_0_1_2_3", resourceCulture);
+                return ResourceManager.GetString("Get_help_for_0_from_Bing", resourceCulture);
             }
         }
         

src/VisualStudio/Core/Def/ServicesVSResources.resx

@@ -447,12 +447,6 @@ Use the dropdown to view and switch to other projects this file may belong to.</
   <data name="No_Changes" xml:space="preserve">
     <value>No Changes</value>
   </data>
-  <data name="Get_help_for_0_1_2_3" xml:space="preserve">
-    <value>Get help for '{0}'{1}{2}{3}</value>
-  </data>
-  <data name="from_Bing" xml:space="preserve">
-    <value> from Bing</value>
-  </data>
   <data name="Current_block" xml:space="preserve">
     <value>Current block</value>
   </data>
@@ -858,4 +852,10 @@ Additional information: {1}</value>
   <data name="type_is_apparent_from_assignment_expression" xml:space="preserve">
     <value>type is apparent from assignment expression</value>
   </data>
+  <data name="Get_help_for_0" xml:space="preserve">
+    <value>Get help for '{0}'</value>
+  </data>
+  <data name="Get_help_for_0_from_Bing" xml:space="preserve">
+    <value>Get help for '{0}' from Bing</value>
+  </data>
 </root>
\ No newline at end of file