Perhaps you should try some spelling variations:
"modified objective optimisation algorithmssss" » "modified objective optimization algorithms", "modified objective optimization algorithmsssss", "modified objective estimation algorithmssss", "modified objective estimation algorithmsssss", "modified objective optimization algorithmssss", "modified multiobjective optimization algorithmssss"
"defined network optimisation algorithm" » "defined network optimization algorithms", "defined network estimation algorithm", "defined network estimation algorithms", "defined network optimization algorithm", "designed network optimisation algorithm"

You may be able to get more results by adjusting your search query.

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