Perhaps you should try some spelling variations:
optimized algorithms » optimized algorithm, optimizer algorithms, optimization algorithms
parameter optimized » parameter optimization
search algorithm » source algorithm
based search » based research, based sers
code based » model based, coal based, income based

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

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