Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
hoc chieu » hoc thieu, ho chieu, hoc hien
va thong » va thuong, va phuong, he thong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: hoc chieu xanh - ((thanh trung) or (hanh trinh)) va thong cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - ((thanh trung) OR (hanh trinh)) va thong cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - ((thanh trung) or (hanh trinh)) va thong cong tan toan ban*.