Perhaps you should try some spelling variations:
"modified quadratic estimation algorithmss" » "modified quadratic estimation algorithms", "modified quadratic estimation algorithm", "modified quadratic optimization algorithms", "modified quadratic optimization algorithmss", "modified quantile estimation algorithmss"
"modified objective optimization algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective estimation algorithm"

Try widening your search to All Fields.

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

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