Perhaps you should try some spelling variations:
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective allocation algorithms"
"modified virus prediction algorithm" » "modified virus predation algorithm", "modified virus predators algorithm", "modified fire prediction algorithm", "modified risk prediction 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 objective estimation algorithms") OR ("modified virus prediction algorithm"))~.
• Removing quotes may allow a broader search: (( modified objective estimation algorithms ) or ( modified virus prediction algorithm ))~.
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