Perhaps you should try some spelling variations:
one approximation » time approximation, _ approximation, rough approximations
method algorithm » mom algorithm
powder using » code using, boiler using, model using
using method » nursing methods, focusing method, using metal
modified one » modified male, modified near, modified orca

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: (( powder using method algorithm ) OR ( modified one approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( powder using method algorithm ) or ( modified one approximation algorithms ))*.