Perhaps you should try some spelling variations:
leong yeon » jeong yeon, seung yeon
yan yang » yang yang, yao yang, dan yang
ii texts » _ texts, do texts, eu texts
chan mun » chak mun, chan ming, chan jan
ai test » api test, i test, ii test
kan mun » kan min, kann man
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yang ((ii texts) or (ai test)) ((kan mun) OR (chan mun)) leong yeon ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan yang ((ii texts) OR (ai test)) ((kan mun) OR (chan mun)) leong yeon ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yang ((ii texts) or (ai test)) ((kan mun) OR (chan mun)) leong yeon ;*".