Perhaps you should try some spelling variations:
wang daoping » wang xiaoping, wang danning, wang xiaobing
daoping yang » dong yang
min hyoung » mun young
test kaw » test a, test kit, test awt
min hong » amin hong, tin hong, min jeong
yang i » yang di, yang xi, yang yi
yeon » leon, deon, yen

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang daoping yang i ((test kaw) OR (test kits)) ((min hong) OR (min hyoung)) yeon ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang daoping yang i ((test kaw) or (test kits)) ((min hong) OR (min hyoung)) yeon ;~".
• Adding a wildcard symbol may retrieve word variants: wang daoping yang i ((test kaw) or (test kits)) ((min hong) OR (min hyoung)) yeon ;*.