Perhaps you should try some spelling variations:
"allocation estimation algorithmssssss" » "allocation estimation algorithms", "allocation estimation algorithm", "allocation optimization algorithmssssss", "motion estimation algorithmssssss"
"parameters optimization algorithms" » "parameter optimization algorithms", "parameter estimation algorithms", "parameters optimisation algorithm", "parameters estimation algorithms", "parameters estimation algorithm"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"allocation estimation algorithmssssss\") OR (\"parameters optimization algorithms\"))~".
• Removing quotes may allow a broader search: (( allocation estimation algorithmssssss ) OR ( parameters optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("allocation estimation algorithmssssss") OR ("parameters optimization algorithms"))*.