What can be used to index and search the document database on a computer with searchable files?

Question

File managers

Task:
- There is a database with text documents on the PC (105,000 doc, docx, pdf, rtf, txt, odt files)
- These documents must be divided into thematic folders (400 in total) depending on the presence of certain phrases in them.
Therefore, it is necessary to implement indexing of this document base, and then be able to search in it, namely in the text of files, specific phrases (preferably with advanced settings for accurate search without garbage), while it is necessary that the search results (files issued by the list on request ) could be copied to another folder.
Dvygun and Google desktop are not suitable. there is no way to copy files as a result of the search (only open each one separately)
Search Inform and Doc Fetcher do not work correctly (problems with indexing and search)
in Total commander search is incorrect (does not return all files that match the request).
How to solve the problem? I've broken my head, please help.

Answer 1

Nitsche you shoved the headline
in general thought docfetcher to advise, it would be nice to figure out what is not being looked for there
or Windows itself, I xs, 10ku, probably, it is rummaging through the contents and also should index everything,
or there is something like this , for real boys
everything else - only through coding

Answer 2

Windows 7+ built-in search should suffice www.oszone.net/10893/Windows7_Search_Part2

Answer 3

Once upon a time there was Yandex.Server, but they covered it up.