Perhaps you should try some spelling variations:
"poses estimation algorithms" » "poses optimization algorithms", "poses optimisation algorithm", "poses approximation algorithms", "pose estimation algorithms", "pulses estimation algorithms", "cover estimations 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"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("poses estimation algorithms") or ((("a simulation algorithm") OR ("a estimation algorithm"))))~.
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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"poses estimation algorithms\") or (((\"a simulation algorithm\") OR (\"a estimation algorithm\"))))".
• Removing quotes may allow a broader search: (( poses estimation algorithms ) or ((( a simulation algorithm ) OR ( a estimation algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("poses estimation algorithms") or ((("a simulation algorithm") OR ("a estimation algorithm"))))*.