Perhaps you should try some spelling variations:
"modified location optimisation algorithm" » "modified location optimization algorithms", "modified location estimation algorithm", "modified location estimation algorithms", "modified allocation optimization algorithm", "modified carbon optimisation algorithm"
"modified invasive optimized algorithm" » "modified invasive optimized algorithms", "modified invasive optimizer algorithms", "modified passive optimized algorithm"

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: (("modified location optimisation algorithm") OR ("modified invasive optimized algorithm"))~.
• Removing quotes may allow a broader search: (( modified location optimisation algorithm ) or ( modified invasive optimized algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified location optimisation algorithm") or ("modified invasive optimized algorithm"))*.