Perhaps you should try some spelling variations:
"modified charging convolution algorithms" » "modified charging evolution algorithm", "modified charging solution algorithm", "modified learning convolution algorithms", "modified caging convolution algorithms", "modified carbon convolution algorithms"
"modified objective optimal algorithm" » "modified objective optimized algorithm", "modified objective optimized algorithms", "modified objective optimizer algorithms"

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