Perhaps you should try some spelling variations:
"modified caging estimation algorithms" » "modified caging estimation algorithm", "modified caging optimization algorithms", "modified caging optimisation algorithm", "modified lighting estimation algorithms"
"modified learning method algorithm" » "mobile learning method algorithm", "modified learning mom algorithm", "modified learning methods algorithm", "modified graining methods 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 learning method algorithm") OR ("modified caging estimation algorithms"))~.
• Removing quotes may allow a broader search: (( modified learning method algorithm ) or ( modified caging estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified learning method algorithm") or ("modified caging estimation algorithms"))*.