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
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
cong van » cong vang, cong san, song van
ban cau » bang cau, ban can, van cau

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