Perhaps you should try some spelling variations:
"modified motion estimation algorithmssss" » "modified motion estimation algorithms", "modified motion estimation algorithm", "modified notion estimation algorithmssss", "modified motion estimation algorithmsss"
"modified objective approximation algorithms" » "modified objective approximation 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: (("modified motion estimation algorithmssss") OR ("modified objective approximation algorithms"))~.
• Removing quotes may allow a broader search: (( modified motion estimation algorithmssss ) or ( modified objective approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified motion estimation algorithmssss") or ("modified objective approximation algorithms"))*.