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)
"data encoding algorithm" » "data finding algorithm" (Expand Search), "data cosine algorithm" (Expand Search), "data including algorithm" (Expand Search), "data according algorithm" (Expand Search), "data recording algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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