Added some more comments to explain a difference between search functions

Author: vitaliyok

search/search_template2.ipynb

@@ -178,7 +178,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Read data using scan helper\n",
+    "# Read data using scan helper function.\n",
+    "# Does not provide a scroll id, so cannot be resumed if search fails midway.\n",
     "df = cs.read_data_with_scan(index=[], query=search_query, include_fields=columns)\n",
     "print(df)"
    ]
@@ -189,7 +190,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Read data with scroll API and get scroll id if search fails midway.\n",
+    "# Read data with scroll API and get scroll id if search fails midway. \n",
+    "# Can be used to resume the search from the failed scroll id.\n",
     "df = cs.read_data_with_scroll(index=[], query=search_query, include_fields=columns)\n",
     "print(df)"
    ]
@@ -201,6 +203,7 @@
    "outputs": [],
    "source": [
     "# Read data with sorting and get search_after value if search fails midway.\n",
+    "# Can be used to resume the search from the failed search_after value but can be slower than scan or scroll methods for large datasets.\n",
     "# Note: Sorting requires a field to sort by, which should be present in the index. Default sorting is by _id.\n",
     "df = cs.read_data_with_sorting(index=[], query=search_query, \n",
     "                               include_fields=columns)\n",