Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
modified learning » mobile learning, modified caging
emotion algorithm » evolution algorithm, estimation algorithm, predation algorithm
modified passive » modified adaptive
learning emotion » learning method

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

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