Perhaps you should try some spelling variations:
"modified objective evolutionary algorithms" » "modified objective evolutionary algorithm", "modified objective evolution algorithm"
"machine learning convolution algorithm" » "machine learning convolution algorithms", "machine learning evolution algorithm", "machine learning solution algorithm"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("machine learning convolution algorithm") or ("modified objective evolutionary algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("machine learning convolution algorithm") OR ("modified objective evolutionary algorithms")).
• Removing quotes may allow a broader search: (( machine learning convolution algorithm ) or ( modified objective evolutionary algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("machine learning convolution algorithm") or ("modified objective evolutionary algorithms"))*.