Perhaps you should try some spelling variations:
"modified objective optimization algorithms" » "modified objective optimisation algorithm", "modified objective estimation algorithms", "modified objective estimation algorithm", "modified multiobjective optimization algorithms"
"machines learning convolution algorithm" » "machines learning convolution algorithms", "machines learning evolution algorithm", "machines learning solution algorithm", "machine learning convolution algorithm", "active learning convolution algorithm", "mapping learning convolution algorithm"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"machines learning convolution algorithm\") OR (\"modified objective optimization algorithms\"))~".
• Removing quotes may allow a broader search: (( machines learning convolution algorithm ) OR ( modified objective optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("machines learning convolution algorithm") OR ("modified objective optimization algorithms"))*.