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