Perhaps you should try some spelling variations:
"model learning convolution algorithms" » "model learning evolution algorithm", "model learning solution algorithm", "mobile learning convolution algorithms"
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation 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: "((\"model learning convolution algorithms\") OR (\"modified multiobjective optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( model learning convolution algorithms ) OR ( modified multiobjective optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("model learning convolution algorithms") OR ("modified multiobjective optimization algorithm"))*.