Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
cang thang » cong thanh, dang thanh
doi chieu » doc hieu, doi chi, ho chieu
hang hang » nang hang, hung thang, lang thang
dung cong » dung trong
cong cang » cong cong, cong lang, cong vang
thang cau » hang cau, thong cau, thanh chau
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (theo chieu)) tinh - hang hang va dung cong cang thang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo chieu)) tinh - hang hang va dung cong cang thang cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo chieu)) tinh - hang hang va dung cong cang thang cau*.