Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang july » yang judy, yang jui
test tuan » test tube
tuan mine » tuan minh, yuan ming
mine cong » minh cong
yang jun » yang jui, pang jun, yang jin
cong ghi » hong ghi, cong shu
yang yi » yang di, yang xi, 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 yang ((yang yi) or (((yang july) OR (yang jun)))) test tuan mine cong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang ((yang yi) OR (((yang july) OR (yang jun)))) test tuan mine cong ghi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang ((yang yi) or (((yang july) OR (yang jun)))) test tuan mine cong ghi ;*".