Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
objective optimization » multiobjective optimization
optimizer algorithms » optimized algorithms, optimized algorithm
df optimizer » _ optimized, _ optimize
modified df » modified _, modified adam, modified bi1

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