Perhaps you should try some spelling variations:
"modified objective optimisation algorithm" » "modified objective optimization algorithm", "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective estimation algorithm", "modified objective estimation algorithms"
"modified adaptive solutions algorithm" » "modified adaptive solution algorithm", "modified adaptive evolution algorithm", "modified adaptive evolutionary algorithm", "modified positive solutions algorithm", "modified passive solutions algorithm"

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