Perhaps you should try some spelling variations:
credits standing » credit standing, credit standings, credit outstanding
standing out » starting out, standing up, sounding out
yale rural » scale rural, sample rural
rate rural » rates rural, state rural, rate real
out cong » out among, out cops
wan yan » wang yan, nan yan, wai yan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan ((yale rural) OR (rate rural)) credits standing out cong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan ((yale rural) OR (rate rural)) credits standing out cong shu ;*".