| sift(verb, examine, look, seek, search) |
| still hunt |
| trace(verb, examine, look, seek, search) |
| track down(verb, expression, follow, pursue, seek) |
| trail(verb, examine, look, seek, investigate) |
| winnow(verb, examine, look, seek, search) |
| be after(verb, follow, pursue, investigate, root) |
| beat the bushes(verb, expression, idiom, follow, pursue) |
| bird-dog(verb, follow, pursue, investigate, root) |
| bob for(verb, expression, follow, pursue, investigate) |
| chase(verb, follow, pursue, investigate, root) |
| comb(verb, follow, pursue, investigate, root) |
| delve for(verb, expression, follow, pursue, investigate) |
| dig for(verb, expression, follow, pursue, investigate) |
| dragnet(verb, follow, pursue, investigate, root) |
| fan(verb, follow, pursue, investigate, root) |
| fish(verb, follow, pursue, investigate, root) |
| leave no stone unturned(verb, expression, idiom, follow, pursue) |
| look about(verb, expression, follow, pursue, investigate) |
| look around(verb, expression, follow, pursue, investigate) |