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)
"defined using algorithm" » "defined using algorithms" (Expand Search), "defined routing algorithm" (Expand Search), "defined fusion algorithm" (Expand Search), "derived using algorithm" (Expand Search), "trained using algorithm" (Expand Search), "determined using algorithm" (Expand Search)
"element based algorithm" » "engagement based 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 ("defined using algorithm"))) OR ("element based algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"image processing algorithm\") OR (\"defined using algorithm\"))) OR (\"element based algorithm\"))".
• Removing quotes may allow a broader search: (((( image processing algorithm ) OR ( defined using algorithm ))) OR ( element based algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("image processing algorithm") OR ("defined using algorithm"))) OR ("element based algorithm"))*.