Perhaps you should try some spelling variations:
"motion estimation algorithms" » "motion optimization algorithms", "motion optimisation algorithm", "motion approximation algorithms"
"a simulation algorithm" » "a solution algorithm", "a optimisation algorithm", "a evolution algorithm", "_ simulation algorithm"
"a estimation algorithm" » "_ estimation algorithm", "a destination algorithm", "_ estimating algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("a simulation algorithm") OR ("a estimation algorithm"))) or ("motion estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("a simulation algorithm") OR ("a estimation algorithm"))) OR ("motion estimation algorithms")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"a simulation algorithm\") OR (\"a estimation algorithm\"))) or (\"motion estimation algorithms\"))".
• Removing quotes may allow a broader search: (((( a simulation algorithm ) OR ( a estimation algorithm ))) or ( motion estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (((("a simulation algorithm") OR ("a estimation algorithm"))) or ("motion estimation algorithms"))*.