Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
cua phan » cua nhan, cua phap, qua phan
tong van » trong van, thong van, tang van
cua han » cua hang, cua nhan, cua ban
ban ban » ban banh, can ban, ban dan

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 (chiet tach)) - thanh trung ((cua han) or (cua phan)) tong van ban ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chiet tach)) - thanh trung ((cua han) OR (cua phan)) tong van ban ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chiet tach)) - thanh trung ((cua han) or (cua phan)) tong van ban ban*.