Perhaps you should try some spelling variations:
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ optimisation algorithm"
"post optimizer algorithms" » "post optimized algorithms", "post optimized algorithm", "post optimization algorithms", "most optimizer algorithms"
"cost optimizer algorithms" » "cost optimized algorithms", "cost optimized algorithm", "cost optimization algorithms", "most optimizer algorithms"

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