Perhaps you should try some spelling variations:
"modified objective optimization algorithms" » "modified objective optimisation algorithm", "modified objective estimation algorithms", "modified objective estimation algorithm", "modified multiobjective optimization algorithms"
"machinery using ibm algorithm" » "machines using ibm algorithm", "machinery using mom algorithm", "machinery using adam algorithm", "machinery using _ algorithm", "machinery using rbf 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: (("machinery using ibm algorithm") OR ("modified objective optimization algorithms"))~.
• Removing quotes may allow a broader search: (( machinery using ibm algorithm ) or ( modified objective optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("machinery using ibm algorithm") or ("modified objective optimization algorithms"))*.