Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
hanh trung » thanh trung, hanh trang, manh trung
trung cua » truong cua, trung tuan, trung cap
trinh ban » trinh han, trinh san, trinh dan
ho thiet » hoc thiet, hoa thiet, so thiet
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
tran ban » tranh ban, tran van, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho thiet tach - hanh trung cua cong ((cong tan) or (cong san)) ((tran ban) or (trinh ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho thiet tach - hanh trung cua cong ((cong tan) OR (cong san)) ((tran ban) OR (trinh ban)).
• Adding a wildcard symbol may retrieve word variants: ho thiet tach - hanh trung cua cong ((cong tan) or (cong san)) ((tran ban) or (trinh ban))*.