Perhaps you should try some spelling variations:
investigation algorithm » estimation algorithm, estimation algorithms
based investigation » raising investigation, effect investigation
predators algorithm » predation algorithm
learning predators » marine predators
modified based » 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 based investigation algorithm ) or ( machine learning predators algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified based investigation algorithm ) OR ( machine learning predators algorithm )).
• Adding a wildcard symbol may retrieve word variants: (( modified based investigation algorithm ) or ( machine learning predators algorithm ))*.