Perhaps you should try some spelling variations:
"modified multiobjective optimized algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective optimized algorithm", "modified multiobjective optimizer algorithms"
"case learning method algorithm" » "case learning mom algorithm", "case learning methods algorithm", "case graining methods algorithm", "case learning emotion algorithm", "based learning method algorithm", "a learning method algorithm"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("case learning method algorithm") OR ("modified multiobjective optimized algorithms"))~.
• Removing quotes may allow a broader search: (( case learning method algorithm ) or ( modified multiobjective optimized algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("case learning method algorithm") or ("modified multiobjective optimized algorithms"))*.