Perhaps you should try some spelling variations:
allocation estimation » allocation optimization, motion estimation
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
solution algorithm » evolution algorithm, convolution algorithms, evolutionary algorithm
modified passive » modified adaptive
passive solution » positive solutions, saline solution

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 solution algorithm ) or ( modified allocation estimation algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified passive solution algorithm ) OR ( modified allocation estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (( modified passive solution algorithm ) or ( modified allocation estimation algorithms ))*.