Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
location optimization » allocation optimization, static optimization
predation algorithm » predators algorithm, estimation algorithm
modified location » modified carbon
orcad predation » orca predation
modified orcad » modified orca

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

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