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 effect optimisation algorithms" » "modified effect optimization algorithms", "modified effect estimation algorithms", "modified effect estimation algorithm", "modified effect optimization algorithmss", "modified effect estimation algorithmss", "modified effects optimisation algorithms"

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