Perhaps you should try some spelling variations:
objective optimisation » objective optimization, multiobjective optimization
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
3d algorithm » _ algorithm, adam algorithm, mom algorithm
model using » code using, models nursing, powder using
using 3d » using 3, using a, 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 optimisation algorithm ) or ( model using 3d algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified objective optimisation algorithm ) OR ( model using 3d algorithm )).
• Adding a wildcard symbol may retrieve word variants: (( modified objective optimisation algorithm ) or ( model using 3d algorithm ))*.