Perhaps you should try some spelling variations:
yanling yang » ying yang
jeong yeon » jeong hyeok, jeang yean, seung yeon
yang yang » wang yang, wang yan
tin jeong » min jeong, tin hong, kin keong
jui test » ai test, api test, i test
test kaw » test a, test kit, test awt
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 ((yanling yang) or (yang yang)) jui test kaw tin jeong yeon ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yanling yang) OR (yang yang)) jui test kaw tin jeong yeon ;*.