Perhaps you should try some spelling variations:
seung yeon » seung joon, seung won, seung youn
jeong yeon » jeong hyeok, jeang yean, jeong dahyeon
yan yang » yang yang, yao yang, dan yang
wan yan » wang yan, nan yan, wai yan
yang yi » yang di, yang xi, yang jui
yi test » ai test, i test, ii test
kits » its, fits, kit
tin » twin, thin

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan yang yi test kits tin ((seung yeon) OR (jeong yeon)) ;~".
• Adding a wildcard symbol may retrieve word variants: wan yan yang yi test kits tin ((seung yeon) OR (jeong yeon)) ;*.