Perhaps you should try some spelling variations:
"image 1_mapping algorithm" » "image making algorithm" (Expand Search), "image scraping algorithm" (Expand Search), "image sampling algorithm" (Expand Search), "image 1_machine 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)

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_mapping algorithm") OR ((("element based algorithm") OR ("element method algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"image 1_mapping algorithm\") OR (((\"element based algorithm\") OR (\"element method algorithm\"))))*".
• Removing quotes may allow a broader search: (( image 1_mapping algorithm ) OR ((( element based algorithm ) OR ( element method algorithm ))))*.