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)
"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 finding algorithm" » "element bonding algorithm" (Expand Search), "recent finding algorithm" (Expand Search), "present findings algorithm" (Expand Search)

Try widening your search to All Fields.

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