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