Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
optimizer algorithms » optimized algorithms, optimization algorithms
optimized algorithm » optimized algorithms
post estimation » pose estimation, risk estimation, pulses estimation

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 ( parameter ((optimizer algorithms) OR (optimized algorithm)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( post estimation algorithms ) OR ( parameter ((optimizer algorithms) OR (optimized algorithm)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( post estimation algorithms ) or ( parameter ((optimizer algorithms) OR (optimized algorithm)) ))".
• Adding a wildcard symbol may retrieve word variants: (( post estimation algorithms ) or ( parameter ((optimizer algorithms) OR (optimized algorithm)) ))*.