Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"
"model using qspr algorithm" » "model using mppt algorithm", "model using our algorithm", "code using qspr algorithm", "models nursing qspr algorithm", "powder using qspr algorithm", "model using qtspim 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 using qspr algorithm\") OR (\"modified multiobjective optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( model using qspr algorithm ) OR ( modified multiobjective optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("model using qspr algorithm") OR ("modified multiobjective optimization algorithm"))*.