Perhaps you should try some spelling variations:
"modified seird approximation algorithm" » "modified seird approximation algorithms", "modified time approximation algorithm", "modified network approximation algorithm", "modified near approximation algorithm"
"modified objective allocation algorithm" » "modified objective estimation algorithm", "modified objective evolution algorithm", "modified objective predation algorithm"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective allocation algorithm") OR ("modified seird approximation algorithm"))~.
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