Perhaps you should try some spelling variations:
"pose estimation algorithms" » "pose estimation algorithm", "pose optimization algorithms", "pose optimisation algorithm"
"3d simulation algorithm" » "3d estimation algorithm", "3d solution algorithm", "3d optimisation algorithm", "_ simulation algorithm", "mri simulation algorithm", "via simulation algorithm"
"a simulation algorithm" » "a estimation algorithm", "a solution algorithm", "a optimisation algorithm", "_ simulation 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: (((("3d simulation algorithm") or ("a simulation algorithm"))) or ("pose estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("3d simulation algorithm") OR ("a simulation algorithm"))) OR ("pose estimation algorithms")).
• Removing quotes may allow a broader search: (((( 3d simulation algorithm ) or ( a simulation algorithm ))) or ( pose estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (((("3d simulation algorithm") or ("a simulation algorithm"))) or ("pose estimation algorithms"))*.