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)
"present model algorithm" » "present novel algorithm" (Expand Search), "present modbo algorithm" (Expand Search), "present modeling algorithm" (Expand Search), "element model algorithm" (Expand Search), "rodent model 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.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("element two algorithms") OR ((("client sampling algorithm") OR ("present model algorithm"))))~.
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• Removing quotes may allow a broader search: (( element two algorithms ) OR ((( client sampling algorithm ) OR ( present model algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element two algorithms") OR ((("client sampling algorithm") OR ("present model algorithm"))))*.