Perhaps you should try some spelling variations:
"modified graph convolutional algorithms" » "modified graph convolution algorithms", "modified graph evolution algorithm", "modified graph evolutionary algorithm", "modified deep convolutional algorithms", "modified trained convolutional algorithms"
"modified objective optimal algorithm" » "modified objective optimized algorithm", "modified objective optimized algorithms", "modified objective optimizer algorithms"

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