Industry is where generic search breaks down
A keyword that works in one industry is useless in another. "Service" means something different to a janitorial firm than to an IT provider, and the codes that define the work vary widely across trades. A search tuned for one industry will quietly miss most of the relevant bids in another — and you will never know what you did not see.
Buyers also describe the same work in wildly different ways. A staffing contract might be filed as "temporary personnel," an IT engagement as "managed services," a security contract as "protective services." If your alerts only match the obvious term, the rest slips past.