Perhaps you should try some spelling variations:
"element sampling algorithm" » "element scheduling algorithm" (Expand Search), "elements sampling algorithm" (Expand Search)
"element mining algorithm" » "element cosine algorithm" (Expand Search), "elements mining algorithm" (Expand Search)
"element all algorithms" » "element _ algorithms" (Expand Search), "elements all 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 all algorithms") OR ((("element sampling algorithm") OR ("element mining algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element all algorithms\") OR (((\"element sampling algorithm\") OR (\"element mining algorithm\"))))".
• Removing quotes may allow a broader search: (( element all algorithms ) OR ((( element sampling algorithm ) OR ( element mining algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element all algorithms") OR ((("element sampling algorithm") OR ("element mining algorithm"))))*.