Perhaps you should try some spelling variations:
"image 1_routing algorithm" » "image routing algorithm" (Expand Search), "image boosting algorithm" (Expand Search), "image 1_resting algorithm" (Expand Search), "image 1_reducing algorithm" (Expand Search), "image 1_using algorithm" (Expand Search)
"element update algorithm" » "element pass algorithm" (Expand Search), "element data algorithms" (Expand Search), "element ipca algorithm" (Expand Search), "element data algorithm" (Expand Search)
"data using algorithm" » "data using algorithms" (Expand Search), "data routing algorithm" (Expand Search), "data fusion 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 1_routing algorithm") OR ("data using algorithm"))) OR ("element update algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"image 1_routing algorithm\") OR (\"data using algorithm\"))) OR (\"element update algorithm\"))".
• Removing quotes may allow a broader search: (((( image 1_routing algorithm ) OR ( data using algorithm ))) OR ( element update algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("image 1_routing algorithm") OR ("data using algorithm"))) OR ("element update algorithm"))*.