Perhaps you should try some spelling variations:
"modified learning convolution algorithm" » "modified learning convolution algorithms", "modified learning evolution algorithm", "modified learning solution algorithm", "mobile learning convolution algorithm", "modified caging convolution algorithm"
"modified objective allocation algorithmsss" » "modified objective location algorithmsss", "modified objective allocation algorithms", "modified objective allocation algorithmic"

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