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