Perhaps you should try some spelling variations:
"implement routine algorithm" » "implement cosine algorithm" (Expand Search)
"element data algorithms" » "element jaya algorithm" (Expand Search), "elements data algorithms" (Expand Search)
"relevant pfos algorithm" » "relevant plos algorithm" (Expand Search), "relevant pros algorithm" (Expand Search), "relevant pfas 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: (((("relevant pfos algorithm") OR ("element data algorithms"))) OR ("implement routine algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"relevant pfos algorithm\") OR (\"element data algorithms\"))) OR (\"implement routine algorithm\"))".
• Removing quotes may allow a broader search: (((( relevant pfos algorithm ) OR ( element data algorithms ))) OR ( implement routine algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("relevant pfos algorithm") OR ("element data algorithms"))) OR ("implement routine algorithm"))*.