Perhaps you should try some spelling variations:
computer wormss » computer works, computer worlds, computer workers
computer worms » computer works, computer terms, computers work
computer worm » computer word, computer work, computers work

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((computer worms) OR (computer wormss))) OR (computer worm)).
• Adding a wildcard symbol may retrieve word variants: ((((computer worms) or (computer wormss))) or (computer worm))*.