Software for managing Word files (doc, docx) archive
I'd suggest you look at the File Content Finder (disclaimer - I'm its developer). It's specifically designed for searching file contents without indexing. It supports all major file formats - pdf, doc(x), xls(x), pptx, rtf, and others. It can also search in scanned png and jpg documents.

Its filtering lets you optimise and refine your search by multiple criteria - file type, creation/modification dates, etc.

Cost: $9.99 USD.