Perhaps you should try some spelling variations:
"post routing algorithm" » "post cosine algorithm" (Expand Search), "most routing algorithm" (Expand Search), "cost routing algorithm" (Expand Search)
"element method algorithm" » "element mould algorithm" (Expand Search), "elements method algorithm" (Expand Search)
"element mapping algorithm" » "elements mapping 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: "((\"post routing algorithm\") OR (((\"element mapping algorithm\") OR (\"element method algorithm\"))))~".
• Removing quotes may allow a broader search: (( post routing algorithm ) OR ((( element mapping algorithm ) OR ( element method algorithm ))))~.
• Adding a wildcard symbol may retrieve word variants: (("post routing algorithm") OR ((("element mapping algorithm") OR ("element method algorithm"))))*.