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

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