Perhaps you should try some spelling variations:
"modified changing optimisation algorithm" » "modified changing optimization algorithms", "modified changing estimation algorithm", "modified changing estimation algorithms", "modified staffing optimization algorithm", "modified caging optimisation algorithm"
"modified parameter optimized algorithms" » "modified parameter optimized algorithm", "modified parameter optimizer algorithms", "modified parameter optimization algorithms"

Try widening your search to All Fields.

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

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