Perhaps you should try some spelling variations:
"modified objective approximation algorithm" » "modified objective approximation algorithms"
"modified choosing optimized algorithm" » "modified choosing optimized algorithms", "modified choosing optimizer algorithms", "modified choosing optimizer algorithm", "modified caging 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 choosing optimized algorithm") OR ("modified objective approximation algorithm"))~.
• Removing quotes may allow a broader search: (( modified choosing optimized algorithm ) or ( modified objective approximation algorithm ))~.
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