Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan chung » luan chinh
cong vang » cong lang, cong quang, cong ngang
ho thiet » hoc thiet, hoa thiet, so thiet
cong van » cong san, song van, cong tan
toan ban » van 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 trinh luan chung ((cong van) or (cong vang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho thiet tach - hanh trinh luan chung ((cong van) OR (cong vang)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ho thiet tach - hanh trinh luan chung ((cong van) or (cong vang)) toan ban*.