Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
objective optimization » multiobjective optimization
source algorithm » our algorithm, search algorithm
using source » using force, using morse
model using » code using, models nursing, powder using

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

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