Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
male approximation » one approximation, time approximation, _ approximation
near optimization » network optimization, stage optimization, _ optimization
modified near » modified seird, modified adam

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified male approximation algorithms ) OR ( modified near optimization algorithms ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified male approximation algorithms ) OR ( modified near optimization algorithms ))*.