Perhaps you should try some spelling variations:
"modified notion estimation algorithms" » "modified notion estimation algorithm", "modified notion optimization algorithms", "modified notion optimisation algorithm", "modified motion estimation algorithms"
"mobile learning solution algorithm" » "mobile learning evolution algorithm", "mobile learning convolution algorithms", "mobile learning evolutionary algorithm", "mobile learning convolution algorithm", "mobile learning emotion algorithm", "machine learning solution algorithm"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified notion estimation algorithms\") OR (\"mobile learning solution algorithm\"))~".
• Removing quotes may allow a broader search: (( modified notion estimation algorithms ) OR ( mobile learning solution algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified notion estimation algorithms") OR ("mobile learning solution algorithm"))*.