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 objective optimizer algorithms" » "modified objective optimized algorithms", "modified objective optimized algorithm", "modified objective optimization algorithms", "modified objective optimal algorithms"

Try widening your search to All Fields.

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 objective optimizer algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("mobile learning convolution algorithm") OR ("modified objective optimizer algorithms")).
• Removing quotes may allow a broader search: (( mobile learning convolution algorithm ) or ( modified objective optimizer algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("mobile learning convolution algorithm") or ("modified objective optimizer algorithms"))*.