Perhaps you should try some spelling variations:
"modified notion approximation algorithms" » "modified network approximation algorithms", "modified time approximation algorithms", "modified one approximation algorithms"
"boiler learning emotion algorithm" » "boiler learning evolution algorithm", "boiler learning estimation algorithm", "boiler learning predation algorithm", "boiler learning method algorithm", "mobile learning emotion algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("boiler learning emotion algorithm") OR ("modified notion approximation algorithms"))~.
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