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

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("machines learning emotion algorithm") or ("modified notion approximation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("machines learning emotion algorithm") OR ("modified notion approximation algorithms")).
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