Perhaps you should try some spelling variations:
predation algorithm » predators algorithm, estimation algorithm
objective optimized » objective optimal, objective optimization
optimized algorithm » optimized algorithms, optimizer algorithms
a predation » _ predation, a prediction, orca predation
modified a » modified _, modified df, modified adam

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

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