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 processing algorithm" » "data modeling algorithm" (Expand Search), "data routing algorithm" (Expand Search), "data tracking algorithm" (Expand Search)
"element em algorithm" » "element new algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element ree algorithm" (Expand Search), "element g 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: (((("image processing algorithm") OR ("data processing algorithm"))) OR ("element em algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"image processing algorithm\") OR (\"data processing algorithm\"))) OR (\"element em algorithm\"))".
• Removing quotes may allow a broader search: (((( image processing algorithm ) OR ( data processing algorithm ))) OR ( element em algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("image processing algorithm") OR ("data processing algorithm"))) OR ("element em algorithm"))*.