Perhaps you should try some spelling variations:
"post estimation algorithms" » "post estimation algorithm", "post optimization algorithms", "post optimisation algorithm", "pose estimation algorithms", "risk estimation algorithms", "pulses estimation algorithms"
"via simulation algorithm" » "via estimation algorithm", "via solution algorithm", "via optimisation algorithm", "a simulation algorithm", "3d simulation algorithm", "mri simulation algorithm"
"_ simulation algorithm" » "_ estimation algorithm", "_ solution algorithm", "_ optimisation 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: (("post estimation algorithms") or ((("via simulation algorithm") OR ("_ simulation algorithm"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("post estimation algorithms") OR ((("via simulation algorithm") OR ("_ simulation algorithm")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"post estimation algorithms\") or (((\"via simulation algorithm\") OR (\"_ simulation algorithm\"))))".
• Removing quotes may allow a broader search: (( post estimation algorithms ) or ((( via simulation algorithm ) OR ( _ simulation algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("post estimation algorithms") or ((("via simulation algorithm") OR ("_ simulation algorithm"))))*.