Perhaps you should try some spelling variations:
"image processing algorithm" » "image modeling algorithm" (Expand Search), "image tracking algorithm" (Expand Search), "image boosting algorithm" (Expand Search)
"model routing algorithm" » "model modeling algorithm" (Expand Search), "model finding algorithm" (Expand Search), "model making algorithm" (Expand Search), "model using algorithm" (Expand Search), "model fitting algorithm" (Expand Search), "model testing algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search), "elements method 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: (("element method algorithm") OR ((("image processing algorithm") OR ("model routing algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element method algorithm\") OR (((\"image processing algorithm\") OR (\"model routing algorithm\"))))".
• Removing quotes may allow a broader search: (( element method algorithm ) OR ((( image processing algorithm ) OR ( model routing algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element method algorithm") OR ((("image processing algorithm") OR ("model routing algorithm"))))*.