How to configure a query for document library search

Question

Background:

In SP2013 Online, for every document library, we have a search box to search within the document library. The query returns results based on document metadata + match within the document.

Requirement:

Search result should match only from Document title and NOT within the document content.

For e.g. :

For the below-mentioned documents, if the search is keyed for word “test”: 2 results are found.

1^st with document title matching the query i.e. ‘Test.docx’ - REQUIRED

2^nd – Document containing the query text – NOT REQUIRED

Answer 1

You can retrieve only document title using query

filename:test