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)
"element means algorithm" » "element search algorithm" (Expand Search), "element mesh algorithm" (Expand Search), "element meshs algorithm" (Expand Search), "latent means algorithm" (Expand Search), "element tes algorithm" (Expand Search)
"element mean algorithm" » "element new algorithm" (Expand Search), "element each algorithm" (Expand Search), "element best algorithm" (Expand Search), "element mesh algorithm" (Expand Search), "latent mean algorithm" (Expand Search), "element te 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 means algorithm") OR ("element mean algorithm"))) OR ("image processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element means algorithm\") OR (\"element mean algorithm\"))) OR (\"image processing algorithm\"))".
• Removing quotes may allow a broader search: (((( element means algorithm ) OR ( element mean algorithm ))) OR ( image processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element means algorithm") OR ("element mean algorithm"))) OR ("image processing algorithm"))*.