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