Perhaps you should try some spelling variations:
"patients sample algorithm" » "patients carlo algorithm" (Expand Search)
"element model algorithm" » "element mould algorithm" (Expand Search), "elements model algorithm" (Expand Search)
"sediment anbs algorithm" » "sediment abs algorithm" (Expand Search), "sediment anas algorithm" (Expand Search), "sediment ans 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: (((("patients sample algorithm") OR ("sediment anbs algorithm"))) OR ("element model algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"patients sample algorithm\") OR (\"sediment anbs algorithm\"))) OR (\"element model algorithm\"))".
• Removing quotes may allow a broader search: (((( patients sample algorithm ) OR ( sediment anbs algorithm ))) OR ( element model algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("patients sample algorithm") OR ("sediment anbs algorithm"))) OR ("element model algorithm"))*.