Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"
"core using raw algorithm" » "core using adam algorithm", "core using _ algorithm", "core using mom algorithm", "code using raw algorithm", "care nursing raw algorithm", "core using real algorithm", "core using a algorithm", "core using low 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: "((\"core using raw algorithm\") OR (\"modified multiobjective optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( core using raw algorithm ) OR ( modified multiobjective optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("core using raw algorithm") OR ("modified multiobjective optimization algorithm"))*.