Perhaps you should try some spelling variations:
"client sampling algorithm" » "client making algorithm" (Expand Search), "client modeling algorithm" (Expand Search), "client mining algorithm" (Expand Search)
"element learning algorithm" » "element learning algorithms" (Expand Search), "excellent learning algorithm" (Expand Search), "student learning algorithm" (Expand Search), "agent learning algorithm" (Expand Search)
"element two algorithms" » "element ml algorithms" (Expand Search), "element _ algorithms" (Expand Search), "element art algorithms" (Expand Search), "element te 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 two algorithms") OR ((("client sampling algorithm") OR ("element learning algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element two algorithms\") OR (((\"client sampling algorithm\") OR (\"element learning algorithm\"))))".
• Removing quotes may allow a broader search: (( element two algorithms ) OR ((( client sampling algorithm ) OR ( element learning algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element two algorithms") OR ((("client sampling algorithm") OR ("element learning algorithm"))))*.