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