Perhaps you should try some spelling variations:
"image sampling algorithm" » "image making algorithm" (Expand Search), "image modeling algorithm" (Expand Search), "image mining algorithm" (Expand Search), "stage sampling algorithm" (Expand Search), "image samples algorithm" (Expand Search), "image labeling algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean 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: (((("element based algorithm") OR ("element method algorithm"))) OR ("image sampling algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element based algorithm\") OR (\"element method algorithm\"))) OR (\"image sampling algorithm\"))".
• Removing quotes may allow a broader search: (((( element based algorithm ) OR ( element method algorithm ))) OR ( image sampling algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element based algorithm") OR ("element method algorithm"))) OR ("image sampling algorithm"))*.