Perhaps you should try some spelling variations:
"modified multiobjective optimisation algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithm", "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"
"modified total optimisation algorithms" » "modified total optimization algorithms", "modified total estimation algorithms", "modified total estimation algorithm", "modified total optimization algorithmss", "modified total estimation algorithmss", "modified global optimization algorithms", "modified thermal optimisation algorithms", "modified ti6al4v optimisation algorithms"

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: (("modified multiobjective optimisation algorithm") OR ("modified total optimisation algorithms"))~.
• Removing quotes may allow a broader search: (( modified multiobjective optimisation algorithm ) or ( modified total optimisation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified multiobjective optimisation algorithm") or ("modified total optimisation algorithms"))*.