Perhaps you should try some spelling variations:
thuong dong » tuong dong, chuong dong, huong dong
phuong dong » phuong dung, phuong hoang, chuong duong
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
ban quan » van quan
can ban » toan ban
san van » tan van, luan van, tran van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sang - can ban quan ((thuong dong) or (phuong dong)) san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - can ban quan ((thuong dong) OR (phuong dong)) san van ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - can ban quan ((thuong dong) or (phuong dong)) san van ban*.