Perhaps you should try some spelling variations:
"data routing algorithm" » "data cosine algorithm" (Expand Search), "data using algorithm" (Expand Search)
"element method algorithm" » "element mould algorithm" (Expand Search)
"elements ppo algorithm" » "elements rd algorithm" (Expand Search), "elements _ algorithm" (Expand Search), "elementi per algorithm" (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements ppo algorithm\") OR (\"element method algorithm\"))) OR (\"data routing algorithm\"))~".
• Removing quotes may allow a broader search: (((( elements ppo algorithm ) OR ( element method algorithm ))) OR ( data routing algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("elements ppo algorithm") OR ("element method algorithm"))) OR ("data routing algorithm"))*.