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