Perhaps you should try some spelling variations:
"mobile learning convolution algorithm" » "mobile learning convolution algorithms", "mobile learning evolution algorithm", "mobile learning solution algorithm", "machine learning convolution algorithm"
"modified parameters estimation algorithms" » "modified parameter estimation algorithms", "modified parameter estimates algorithms", "modified parameter optimization algorithms", "modified parameters estimation algorithm", "modified parameters optimization algorithms", "modified parameters optimisation algorithm"

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

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