Perhaps you should try some spelling variations:
"element mining algorithm" » "element finding algorithm" (Expand Search), "element making algorithm" (Expand Search), "element training algorithms" (Expand Search), "element mapping algorithm" (Expand Search), "element bonding algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"present data algorithms" » "present art algorithms" (Expand Search), "present all algorithms" (Expand Search), "present both algorithms" (Expand Search), "presence data algorithms" (Expand Search), "present day algorithms" (Expand Search), "recent data algorithms" (Expand Search)
"element rf algorithm" » "element _ algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element art algorithms" (Expand Search), "element ore algorithm" (Expand Search), "element ree algorithm" (Expand Search)

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