Perhaps you should try some spelling variations:
linear three » linear tree, near three, linear free
worst come » worst case, first come, words come
come later » some later, some late, home late
june three » jun three, one three, line three
im worst » his worst, _ worst, im world
2008 im » 2008 iet, 2008 iso, 2008 acm

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: 2008 im worst come later ((june three) OR (linear three)).
• Adding a wildcard symbol may retrieve word variants: 2008 im worst come later ((june three) or (linear three))*.