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