Web -> Home page - > Without logging IN at all-> Search doesnt work correctly: Critical issue

1.In the landing 'Home page'
2.Try to Search with 'Angul'. This doesnt show any results
3.Try to Search with 'Angular'. This will show some results

Actual result:
Search results are shown only if the entire word is matching. For partial matches no results are displayed.

Expected result:
For partial or full word, the matching results to be dispayed