Perhaps you should try some spelling variations:
"image processing algorithm" » "image routing algorithm" (Expand Search), "image tracking algorithm" (Expand Search), "image boosting algorithm" (Expand Search)
"fold modeling algorithm" » "fold making algorithm" (Expand Search), "field modeling algorithm" (Expand Search), "flood modeling algorithm" (Expand Search), "yield modeling algorithm" (Expand Search)
"elements tree algorithms" » "elements three algorithms" (Expand Search), "elements art algorithms" (Expand Search), "elements two algorithms" (Expand Search), "elements ree algorithms" (Expand Search), "element ree algorithms" (Expand Search), "elements res algorithms" (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 ("fold modeling algorithm"))) OR ("elements tree algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"image processing algorithm\") OR (\"fold modeling algorithm\"))) OR (\"elements tree algorithms\"))".
• Removing quotes may allow a broader search: (((( image processing algorithm ) OR ( fold modeling algorithm ))) OR ( elements tree algorithms )).
• Adding a wildcard symbol may retrieve word variants: (((("image processing algorithm") OR ("fold modeling algorithm"))) OR ("elements tree algorithms"))*.