Perhaps you should try some spelling variations:
"modified allocation estimation algorithm" » "modified allocation optimization algorithm", "modified motion estimation algorithm"
"modified charging optimized algorithm" » "modified charging optimized algorithms", "modified charging optimizer algorithms", "modified choosing optimizer algorithm", "modified caging optimized algorithm", "modified carbon 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 charging optimized algorithm") OR ("modified allocation estimation algorithm"))~.
• Removing quotes may allow a broader search: (( modified charging optimized algorithm ) or ( modified allocation estimation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified charging optimized algorithm") or ("modified allocation estimation algorithm"))*.