Perhaps you should try some spelling variations:
jeong yeon » jeong hyeok, jeang yean, seung yeon
dong myron » dong myeon
daun yang » du yang, tan yang, un yang
yao yang » yang yang
dan yang » tan yang, wang yang, yang yang
yi test » ai test, i test, ii test
test 5 » test _, test 4
5 tin » 5 thin, 5 ein, _ tin

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing ((yao yang) or (((dan yang) OR (daun yang)))) yi test 5 tin ((jeong yeon) or (dong myron)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing ((yao yang) OR (((dan yang) OR (daun yang)))) yi test 5 tin ((jeong yeon) OR (dong myron)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing ((yao yang) or (((dan yang) OR (daun yang)))) yi test 5 tin ((jeong yeon) or (dong myron)) ;*".