Perhaps you should try some spelling variations:
"image processing algorithm" » "image processing algorithms" (Expand Search)
"element model algorithm" » "element mould algorithm" (Expand Search), "elements model algorithm" (Expand Search)
"element best algorithm" » "element deer algorithm" (Expand Search), "elements best algorithm" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"image processing algorithm\") OR (((\"element model algorithm\") OR (\"element best algorithm\"))))~".
• Removing quotes may allow a broader search: (( image processing algorithm ) OR ((( element model algorithm ) OR ( element best algorithm ))))~.
• Adding a wildcard symbol may retrieve word variants: (("image processing algorithm") OR ((("element model algorithm") OR ("element best algorithm"))))*.