Perhaps you should try some spelling variations:
"modified d convolutional algorithms" » "modified d convolution algorithms", "modified d evolution algorithm", "modified d evolutionary algorithm", "modified deep convolutional algorithms", "modified df convolutional algorithms", "modified _ convolutional algorithms", "modified adam convolutional algorithms"
"modified allocation optimization algorithms" » "modified allocation optimisation algorithm", "modified allocation estimation algorithms", "modified allocation estimation algorithm", "modified location optimization 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 d convolutional algorithms") or ("modified allocation optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified d convolutional algorithms") OR ("modified allocation optimization algorithms")).
• Removing quotes may allow a broader search: (( modified d convolutional algorithms ) or ( modified allocation optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified d convolutional algorithms") or ("modified allocation optimization algorithms"))*.