Perhaps you should try some spelling variations:
"modified multiobjective optimisation algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithm", "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"
"machine control method algorithm" » "machine control mom algorithm", "active control method algorithm", "tracking control method algorithm", "machine control methods 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: (("machine control method algorithm") or ("modified multiobjective optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("machine control method algorithm") OR ("modified multiobjective optimisation algorithm")).
• Removing quotes may allow a broader search: (( machine control method algorithm ) or ( modified multiobjective optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("machine control method algorithm") or ("modified multiobjective optimisation algorithm"))*.