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