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