Perhaps you should try some spelling variations:
"text processing algorithm" » "text modeling algorithm" (Expand Search), "text routing algorithm" (Expand Search), "text tracking algorithm" (Expand Search), "time processing algorithm" (Expand Search), "post processing algorithm" (Expand Search), "waste processing algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"elements rast algorithm" » "elements best algorithm" (Expand Search), "elements forest algorithm" (Expand Search), "elements based algorithm" (Expand Search), "elements res algorithm" (Expand Search), "elements wt algorithm" (Expand Search)

Try widening your search to All Fields.

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