Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
wang daoping » wang danning, wang xiaobing, wang yanling
hong yeon » dong myeon, jeong yeon, hong seo
test kaw » test a, test kit, test awt
min hong » amin hong, tin hong, min hyoung
yang xi » yang di, yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang daoping) OR (wang xiaoping)) yang xi ((test kaw) or (test kits)) min hong yeon ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang daoping) OR (wang xiaoping)) yang xi ((test kaw) OR (test kits)) min hong yeon ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang daoping) OR (wang xiaoping)) yang xi ((test kaw) or (test kits)) min hong yeon ;*".