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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("more learning emotion algorithm") OR ("modified notion approximation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"more learning emotion algorithm\") OR (\"modified notion approximation algorithms\"))".
• Removing quotes may allow a broader search: (( more learning emotion algorithm ) OR ( modified notion approximation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("more learning emotion algorithm") OR ("modified notion approximation algorithms"))*.