Perhaps you should try some spelling variations:
"modified adam estimation algorithms" » "modified adam estimation algorithm", "modified adam optimization algorithms", "modified adam optimisation algorithm", "modified df estimation algorithms", "modified near estimation algorithms"
"modified learning convolution algorithm" » "modified learning convolution algorithms", "modified learning evolution algorithm", "modified learning solution algorithm", "mobile learning convolution algorithm", "modified caging convolution algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified adam estimation algorithms") or ("modified learning convolution algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified adam estimation algorithms") OR ("modified learning convolution algorithm")).
• Removing quotes may allow a broader search: (( modified adam estimation algorithms ) or ( modified learning convolution algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified adam estimation algorithms") or ("modified learning convolution algorithm"))*.