GroupDocs.Search allows you to perform Simple Search operations, the following steps are needed to be followed:
Exact Phrase Search
Since version 16.10, GroupDocs.Search allows you to search the documents by exact phrase. Following sample demonstrates the usage of this feature.
Use double quotes in the query string for Exact Phrase Search.
Exact Phrase Search with Highlighted Results
Since version 17.12, GroupDocs.Search allows you to generate HTML-formatted text with highlighted found terms for the results of exact phrase search. The following code sample shows the usage of this feature.