Perhaps you should try some spelling variations:
"implement routine algorithm" » "implement cosine algorithm" (Expand Search)
"element deer algorithm" » "element search algorithm" (Expand Search), "elementi per algorithm" (Expand Search)
"element erf algorithm" » "element rd algorithm" (Expand Search), "element search algorithm" (Expand Search), "elementi per 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 deer algorithm") OR ((("implement routine algorithm") OR ("element erf algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element deer algorithm\") OR (((\"implement routine algorithm\") OR (\"element erf algorithm\"))))".
• Removing quotes may allow a broader search: (( element deer algorithm ) OR ((( implement routine algorithm ) OR ( element erf algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element deer algorithm") OR ((("implement routine algorithm") OR ("element erf algorithm"))))*.