Perhaps you should try some spelling variations:
"image processing algorithm" » "image modeling algorithm" (Expand Search), "image routing algorithm" (Expand Search), "image tracking algorithm" (Expand Search)
"present data algorithm" » "present data algorithms" (Expand Search), "present update algorithm" (Expand Search), "present atlas algorithm" (Expand Search), "presence data algorithm" (Expand Search), "present day algorithm" (Expand Search), "recent data algorithm" (Expand Search)
"elements rl algorithms" » "elements ml algorithms" (Expand Search), "elements rl algorithm" (Expand Search), "elements art algorithms" (Expand Search), "elements ree algorithms" (Expand Search), "elements res algorithms" (Expand Search), "elements _ algorithms" (Expand Search)

Try widening your search to All Fields.

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