Perhaps you should try some spelling variations:
variation algorithms » estimation algorithms, vision algorithms, approximation algorithms
objective predation » objective allocation
predation algorithm » predators algorithm, estimation algorithm
large variation » large evaluation
modified large » modified male

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified large variation algorithms ) or ( modified objective predation algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified large variation algorithms ) OR ( modified objective predation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (( modified large variation algorithms ) or ( modified objective predation algorithm ))*.