Perhaps you should try some spelling variations:
thanh trung » thanh tung
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
hoc chiet » hoc thiet, hoc nhiet, hoc hien
van thong » van thuong, van phong, va thong
san thanh » ban thanh, van thanh, son thanh
thanh lap » thanh san, phan lap, thanh hai
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chiet tach - ((thanh trung) or (hanh trinh)) van thong cong san thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - ((thanh trung) OR (hanh trinh)) van thong cong san thanh lap.
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - ((thanh trung) or (hanh trinh)) van thong cong san thanh lap*.