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"
"mapping weaning from algorithm" » "mapping learning from algorithm", "mapping weaning mom algorithm", "mapping weaning adam algorithm", "mapping reading from algorithm", "mapping learnings from 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: (("mapping weaning from algorithm") OR ("modified objective optimization algorithms"))~.
• Removing quotes may allow a broader search: (( mapping weaning from algorithm ) or ( modified objective optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("mapping weaning from algorithm") or ("modified objective optimization algorithms"))*.