Perhaps you should try some spelling variations:
"image processing algorithm" » "image processing algorithms" (Expand Search)
"data routing algorithm" » "data cosine algorithm" (Expand Search), "data using algorithm" (Expand Search)
"element mesh algorithm" » "element deer algorithm" (Expand Search), "element search algorithm" (Expand Search), "elements mesh 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 processing algorithm"))) OR ("element mesh algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"data routing algorithm\") OR (\"image processing algorithm\"))) OR (\"element mesh algorithm\"))".
• Removing quotes may allow a broader search: (((( data routing algorithm ) OR ( image processing algorithm ))) OR ( element mesh algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("data routing algorithm") OR ("image processing algorithm"))) OR ("element mesh algorithm"))*.