Perhaps you should try some spelling variations:
seung joon » kyung joon, seung won, seung yeon
wang yong » wang yang, wang hyoung, wang yan
yong yang » yang yang, dong yang, ying yang
yang ii » yang di, yang xi, yang yi
ii test » ai test, i test, api test
a maine » a marine, _ maine, a marne
a main » 1 main, 2 main

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: "wang yong yang ii test ((a main) OR (a maine)) seung joon ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong yang ii test ((a main) OR (a maine)) seung joon ;*.