Perhaps you should try some spelling variations:
jeang yean » jeong yeon
wang yong » wang yang, wang hyoung, wang yan
yong yan » yang yang, dong yang, ying yang
api test » i test, ii test
xi test » i test, ii test, ein test
ai test » i test, ii test, ein test
han en » han men, van en, chan eng

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong yan ((xi test) or (((ai test) OR (api test)))) ((new spain) or (han en)) jeang yean ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yan ((xi test) OR (((ai test) OR (api test)))) ((new spain) OR (han en)) jeang yean ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yan ((xi test) or (((ai test) OR (api test)))) ((new spain) or (han en)) jeang yean ;*".