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

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

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