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"
"boiler using source algorithm" » "boiler using our algorithm", "boiler using search algorithm", "powder using source algorithm", "boiler using force algorithm", "boiler using morse algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("boiler using source algorithm") or ("modified multiobjective optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("boiler using source algorithm") OR ("modified multiobjective optimisation algorithm")).
• Removing quotes may allow a broader search: (( boiler using source algorithm ) or ( modified multiobjective optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("boiler using source algorithm") or ("modified multiobjective optimisation algorithm"))*.