Perhaps you should try some spelling variations:
"done optimizer algorithmss" » "done optimizer algorithms", "done optimized algorithms", "dong optimizer algorithmss", "one optimizer algorithmss", "don optimizer algorithmss"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ optimisation algorithm"
"_ optimized algorithm" » "_ optimized algorithms", "_ 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: (("done optimizer algorithmss") or ((("_ optimized algorithm") or ("_ estimation algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("done optimizer algorithmss") OR ((("_ optimized algorithm") OR ("_ estimation algorithms")))).
• Removing quotes may allow a broader search: (( done optimizer algorithmss ) or ((( _ optimized algorithm ) or ( _ estimation algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("done optimizer algorithmss") or ((("_ optimized algorithm") or ("_ estimation algorithms"))))*.