Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
huong quan » luong quan, cuong quan, vuong quan
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
ho chieu » hoc thieu, doi chieu, mot chieu
ban nhan » van nhan, ban thanh, benh nhan
ban than » ban thanh, van thanh, ban hang

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: ((ho chieu) OR (theo chieu)) xanh - anh huong quan dung cong ((ban nhan) OR (ban than)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) xanh - anh huong quan dung cong ((ban nhan) OR (ban than)) cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) xanh - anh huong quan dung cong ((ban nhan) OR (ban than)) cau*.