Perhaps you should try some spelling variations:
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"element both algorithms" » "element art algorithms" (Expand Search), "element four algorithms" (Expand Search), "element box algorithm" (Expand Search), "element data algorithms" (Expand Search), "element te algorithms" (Expand Search), "element mesh algorithms" (Expand Search)
"implement based algorithm" » "implemented based algorithm" (Expand Search), "implementing based algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("implement based algorithm") OR ((("element method algorithm") OR ("element both algorithms"))))~.
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• Removing quotes may allow a broader search: (( implement based algorithm ) OR ((( element method algorithm ) OR ( element both algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("implement based algorithm") OR ((("element method algorithm") OR ("element both algorithms"))))*.