Perhaps you should try some spelling variations:
"mobile learning evolution algorithm" » "mobile learning evolutionary algorithm", "mobile learning convolution algorithms", "mobile learning estimation algorithm", "mobile learning convolution algorithm", "mobile learning emotion algorithm", "machine learning evolution algorithm"
"modified objective solution algorithm" » "modified objective evolutionary algorithm", "modified objective allocation algorithm", "modified objective convolution algorithms", "modified objective estimation algorithm"

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