[skip ci] Improve test comments (#10742)

Signed-off-by: NBinbin Lv <binbin.lv@zilliz.com>

tests/python_client/testcases/test_search_20.py

@@ -1079,9 +1079,9 @@ class TestCollectionSearch(TestcaseBase):
     def test_search_load_flush_load(self, nb, nq, dim, auto_id, _async):
         """
         target: test search when load before flush
-        method: 1. search the collection
-                2. insert data and load
-                3. flush, and load
+        method: 1. insert data and load
+                2. flush, and load
+                3. search the collection
         expected: search success with limit(topK)
         """
         # 1. initialize with data
@@ -1093,7 +1093,7 @@ class TestCollectionSearch(TestcaseBase):
         # 4. flush and load
         collection_w.num_entities
         collection_w.load()
-        # 5. search for new data without load
+        # 5. search
         vectors = [[random.random() for _ in range(dim)] for _ in range(nq)]
         collection_w.search(vectors[:nq], default_search_field,
                             default_search_params, default_limit,