Perhaps you should try some spelling variations:
"modified motion optimization algorithmssss" » "modified motion optimization algorithms", "modified motion optimisation algorithm", "modified motion estimation algorithmssss", "modified policy optimization algorithmssss", "modified allocation optimization algorithmssss"
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective allocation 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 motion optimization algorithmssss") or ("modified objective estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified motion optimization algorithmssss") OR ("modified objective estimation algorithms")).
• Removing quotes may allow a broader search: (( modified motion optimization algorithmssss ) or ( modified objective estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified motion optimization algorithmssss") or ("modified objective estimation algorithms"))*.