Perhaps you should try some spelling variations:
tieng trung » truong trung
danh trung » dang trung, dinh trung, thanh trung
chieu xanh » chieu sach, chieu sang, chieu tinh
manh trung » manh tung, thanh trung, manh hung
dung tieng » vung tieng, dung tien, rung thieng
trung tuan » trung thanh, trung tam, tran tuan
hieu xanh » hieu manh, hieu nganh, dieu hanh
cap dung » ap dung, cao dung, chan dung
tuan tai » toan tai, quan tai, tan tai

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)) - ((danh trung) or (manh trung)) cap dung tieng trung tuan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu xanh)) - ((danh trung) OR (manh trung)) cap dung tieng trung tuan tai.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (chieu xanh)) - ((danh trung) or (manh trung)) cap dung tieng trung tuan tai*.