Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
near optimization » network optimization, stage optimization, _ optimization
source algorithm » our algorithm, search algorithm
modified near » modified seird, modified adam
using source » using force, using morse

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( (code OR core) using source algorithm ) OR ( modified near optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( (code or core) using source algorithm ) or ( modified near optimization algorithm ))*.