Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"
"towler focusing method algorithm" » "towler focusing mom algorithm", "towler forecasting method algorithm", "tower focusing method algorithm", "bowler focusing method algorithm"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("towler focusing method algorithm") or ("modified multiobjective optimization algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("towler focusing method algorithm") OR ("modified multiobjective optimization algorithm")).
• Removing quotes may allow a broader search: (( towler focusing method algorithm ) or ( modified multiobjective optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("towler focusing method algorithm") or ("modified multiobjective optimization algorithm"))*.