Perhaps you should try some spelling variations:
"implement routine algorithm" » "implement cosine algorithm" (Expand Search), "implemented routine algorithm" (Expand Search), "implementing routine algorithm" (Expand Search)
"relevant data algorithm" » "relevant jaya algorithm" (Expand Search), "relevant deer algorithm" (Expand Search)
"element tree algorithms" » "elements tree algorithms" (Expand Search), "element three algorithms" (Expand Search), "element free algorithms" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("implement routine algorithm") OR ((("relevant data algorithm") OR ("element tree algorithms"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"implement routine algorithm\") OR (((\"relevant data algorithm\") OR (\"element tree algorithms\"))))".
• Removing quotes may allow a broader search: (( implement routine algorithm ) OR ((( relevant data algorithm ) OR ( element tree algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("implement routine algorithm") OR ((("relevant data algorithm") OR ("element tree algorithms"))))*.