Perhaps you should try some spelling variations:
"element mining algorithm" » "element cosine algorithm" (Expand Search), "elements mining algorithm" (Expand Search)
"element mesh algorithm" » "element deer algorithm" (Expand Search), "element search algorithm" (Expand Search), "elements mesh algorithm" (Expand Search)
"element mean algorithm" » "element deer algorithm" (Expand Search), "element search algorithm" (Expand Search), "elements mean algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("element mining algorithm") OR ((("element mesh algorithm") OR ("element mean algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element mining algorithm\") OR (((\"element mesh algorithm\") OR (\"element mean algorithm\"))))".
• Removing quotes may allow a broader search: (( element mining algorithm ) OR ((( element mesh algorithm ) OR ( element mean algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element mining algorithm") OR ((("element mesh algorithm") OR ("element mean algorithm"))))*.