Perhaps you should try some spelling variations:
"image matching algorithm" » "image making algorithm" (Expand Search), "image modeling algorithm" (Expand Search), "image mining algorithm" (Expand Search), "case matching algorithm" (Expand Search), "phase matching algorithm" (Expand Search), "scale matching algorithm" (Expand Search)
"data routing algorithm" » "data modeling algorithm" (Expand Search), "data finding algorithm" (Expand Search), "data making algorithm" (Expand Search), "data groupings algorithm" (Expand Search), "data relating algorithm" (Expand Search), "data using 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 routing algorithm") OR ("image matching algorithm"))) OR ("element method algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"data routing algorithm\") OR (\"image matching algorithm\"))) OR (\"element method algorithm\"))".
• Removing quotes may allow a broader search: (((( data routing algorithm ) OR ( image matching algorithm ))) OR ( element method algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("data routing algorithm") OR ("image matching algorithm"))) OR ("element method algorithm"))*.