Perhaps you should try some spelling variations:
"modified network estimation algorithm" » "modified network optimization algorithm", "certified network estimation algorithm", "defined network estimation algorithm", "modified near estimation algorithm"
"modified learning solution algorithm" » "modified learning evolution algorithm", "modified learning convolution algorithms", "modified learning evolutionary algorithm", "mobile learning solution algorithm", "modified caging solution algorithm", "modified learning convolution algorithm", "modified learning emotion algorithm"

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: (("modified network estimation algorithm") OR ("modified learning solution algorithm"))~.
• Removing quotes may allow a broader search: (( modified network estimation algorithm ) or ( modified learning solution algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified network estimation algorithm") or ("modified learning solution algorithm"))*.