Perhaps you should try some spelling variations:
yong yang » dong yang, ying yang, kyoung yang
yang yang » wang yang, wang yan
yi chang » ii chang, ying chang, jin chang
api test » ai test, ii test
tin dong » tin hong, shin dong, kim dong
i test » ai test, i testi, ii test
myeon » myeong, yeon, myron

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 yang) OR (yang yang))) OR (yi chang)) ((api test) OR (i test)) kit tin dong myeon ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((((yong yang) OR (yang yang))) OR (yi chang)) ((api test) OR (i test)) kit tin dong myeon ;*".