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