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