Perhaps you should try some spelling variations:
"modified objective allocation algorithm" » "modified objective estimation algorithm", "modified objective evolution algorithm", "modified objective predation algorithm"
"modified flour solution algorithm" » "modified flour evolution algorithm", "modified flour convolution algorithms", "modified flour evolutionary algorithm", "modified four solution algorithm", "modified floor solution algorithm", "modified flor solution algorithm"

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