Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien xanh » hien hanh, hien nhanh, chieu xanh
hieu lang » chieu sang, hieu quang, nhieu tang
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
song van » hoang van, trong van, duong van
van van » tan van, san van, van vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (hieu lang)) - thanh trung ((cua dung) or (qua dung)) song van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hieu lang)) - thanh trung ((cua dung) OR (qua dung)) song van van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hieu lang)) - thanh trung ((cua dung) or (qua dung)) song van van ban*.