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