Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
hien nhanh » hien hanh, thien thanh, tien thanh
thong cong » trong cong, tong cong, thong thong
trung va » truong va, trang va, trung ha
va thong » va thuong, va phuong, he thong
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan cau » phan dau, phan cac, phan tu

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) or (hien nhanh)) - thanh trung va thong cong tan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hien nhanh)) - thanh trung va thong cong tan phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hien nhanh)) - thanh trung va thong cong tan phan cau*.