Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhan dang » nhan dan, phan dang, tran dang
dung cong » dung trong
dang cua » dung cua, dong cua, mang cua
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
than man » than ma, tran manh, than phan

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 tinh - nhan dang cua dung cong san ((than man) or (thanh san))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu tinh - nhan dang cua dung cong san ((than man) OR (thanh san)).
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - nhan dang cua dung cong san ((than man) or (thanh san))*.