Perhaps you should try some spelling variations:
"modified early convolution algorithms" » "modified early evolution algorithm", "modified early solution algorithm", "modified early evolution algorithms", "modified learning convolution algorithms", "modified male convolution algorithms", "modified near convolution algorithms"
"modified objective allocation algorithm" » "modified objective estimation algorithm", "modified objective evolution algorithm", "modified objective predation 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 objective allocation algorithm") or ("modified early convolution algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective allocation algorithm") OR ("modified early convolution algorithms")).
• Removing quotes may allow a broader search: (( modified objective allocation algorithm ) or ( modified early convolution algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective allocation algorithm") or ("modified early convolution algorithms"))*.