Perhaps you should try some spelling variations:
"modified multiobjective optimizer algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective optimized algorithms", "modified multiobjective optimized algorithm"
"when learning convolution algorithm" » "when learning convolution algorithms", "when learning evolution algorithm", "when learning solution algorithm", "deep learning convolution algorithm", "how learning convolution algorithm", "shot learning convolution 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: (("when learning convolution algorithm") or ("modified multiobjective optimizer algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("when learning convolution algorithm") OR ("modified multiobjective optimizer algorithms")).
• Removing quotes may allow a broader search: (( when learning convolution algorithm ) or ( modified multiobjective optimizer algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("when learning convolution algorithm") or ("modified multiobjective optimizer algorithms"))*.