Perhaps you should try some spelling variations:
optimizer algorithms » optimized algorithms, optimized algorithm, optimization algorithms
predation algorithm » predators algorithm, estimation algorithm
objective optimizer » objective optimal, objective optimization
risk predation » risk prediction
modified risk » modified bi1

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

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