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"
"modified a predictive algorithm" » "modified a predation algorithm", "modified a predators algorithm", "modified _ predictive algorithm", "modified _ predicting algorithm", "modified _ prediction algorithm", "modified df predictive algorithm", "modified adam predictive algorithm"

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

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