@Thomas: Why do you think that is missing. This feature exists and is the main reason for the program.
In the upper part of the dialog you can enter what to look for INSIDE the files.
In the middle of the dialog you can limit the search to special directories or files (e.g. their size and name).
So I see not what is missing.
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the search text you enter is searched for inside the files.
Otherwise this tool would make no sense.
@Thomas: Why do you think that is missing. This feature exists and is the main reason for the program.
In the upper part of the dialog you can enter what to look for INSIDE the files.
In the middle of the dialog you can limit the search to special directories or files (e.g. their size and name).
So I see not what is missing.