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"
"modified deep splitting algorithm" » "modified dual splitting algorithm", "modified delphi splitting algorithm", "modified df splitting algorithm", "modified near splitting 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: (("modified deep splitting algorithm") or ("modified multiobjective optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified deep splitting algorithm") OR ("modified multiobjective optimisation algorithm")).
• Removing quotes may allow a broader search: (( modified deep splitting algorithm ) or ( modified multiobjective optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified deep splitting algorithm") or ("modified multiobjective optimisation algorithm"))*.