Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective optimisation algorithm"
"core using method algorithm" » "core using mom algorithm", "core nursing methods algorithm", "core focusing method algorithm", "core using metal algorithm", "code using method algorithm", "care nursing method algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("core using method algorithm") or ("modified multiobjective estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("core using method algorithm") OR ("modified multiobjective estimation algorithms"))*.
• Removing quotes may allow a broader search: (( core using method algorithm ) or ( modified multiobjective estimation algorithms ))*.