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 pre algorithm" » "model using mppt algorithm", "model using qspr algorithm", "model using _ algorithm", "code using pre algorithm", "models nursing pre algorithm", "powder using pre algorithm", "model nursing pre algorithm", "model using one algorithm", "model using ph 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 pre algorithm\") OR (\"modified multiobjective optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( model using pre algorithm ) OR ( modified multiobjective optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("model using pre algorithm") OR ("modified multiobjective optimization algorithm"))*.