Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithms", "modified multiobjective estimation algorithm"
"effective reading methods algorithm" » "effective gradient methods algorithm", "active reading methods algorithm", "effective learning methods algorithm", "effective making methods algorithm", "effective graining methods 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: (("effective reading methods algorithm") OR ("modified multiobjective optimization algorithms"))~.
• Removing quotes may allow a broader search: (( effective reading methods algorithm ) or ( modified multiobjective optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("effective reading methods algorithm") or ("modified multiobjective optimization algorithms"))*.