How can I add fields in "search" for a report?

How can I add fields in "search" for a report?

I am not sure if I am using the proper lingo here, so I think a screenshot would be best to illustrate my question. See, what I need to do is add multiple "Software" and "Title" search fields, because we often will be searching within our spreadsheet for a freelancer that may fit multiple titles and is proficient in multiple software applications, so we have to be able to search for more than one term within each of those columns. We might even like a few more non-specific search fields added so it can just search throughout the whole sheet and not just certain columns. Please help!!