Perhaps you should try some spelling variations:
"modified early convolution algorithms" » "modified early solution algorithm", "modified early evolution algorithms", "modified learning convolution algorithms", "modified male convolution algorithms", "modified near convolution algorithms"
"modified objective evolution algorithm" » "modified objective evolutionary algorithm", "modified objective allocation algorithm", "modified objective solution algorithm", "modified objective estimation algorithm"

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