Perhaps you should try some spelling variations:
"modified notion estimation algorithmssss" » "modified notion estimation algorithm", "modified notion estimation algorithmsss", "modified notion optimization algorithmssss", "modified notion optimisation algorithmsss", "modified motion estimation algorithmssss"
"modified quadratic estimation algorithms" » "modified quadratic estimation algorithm", "modified quadratic optimization algorithms", "modified quadratic optimisation algorithm", "modified quantile estimation algorithms"

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 notion estimation algorithmssss") or ("modified quadratic estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified notion estimation algorithmssss") OR ("modified quadratic estimation algorithms")).
• Removing quotes may allow a broader search: (( modified notion estimation algorithmssss ) or ( modified quadratic estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified notion estimation algorithmssss") or ("modified quadratic estimation algorithms"))*.