Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung tung » nhung tuong, nhung dung, nhung vung
hieu xanh » hieu manh, hieu nganh, dieu hanh
trung cap » truong cao, trung tam
cap nhung » cam nhung, vap nhung, dap nhung
tung dan » dung dan, huong dan, trung dai
toan cau » toan cao, toan tap, toan tai
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: doc ((hieu xanh) or (chieu xanh)) - thanh trung cap nhung tung dan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu xanh)) - thanh trung cap nhung tung dan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (chieu xanh)) - thanh trung cap nhung tung dan ((toan cau) or (toan ban))*.