Perhaps you should try some spelling variations:
"modified objective optimization algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective estimation algorithm"
"machines using open algorithm" » "machinery using open algorithm", "machines using mppt algorithm", "machines using our algorithm", "machines using driven algorithm", "machines using opencl algorithm", "machines using one algorithm"

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

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