Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung cap » truong cao, trung tam
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
chi xanh » chi anh, chi danh, chieu xanh
chi hanh » chi nhanh, chi thanh, thi hanh
tran tap » toan tap, tran tan, tran tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi xanh) or (chi hanh)) - thanh trung cap ((hang cong) OR (dang cong)) tan tran tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi xanh) OR (chi hanh)) - thanh trung cap ((hang cong) OR (dang cong)) tan tran tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi xanh) or (chi hanh)) - thanh trung cap ((hang cong) OR (dang cong)) tan tran tap".
• Adding a wildcard symbol may retrieve word variants: doi ((chi xanh) or (chi hanh)) - thanh trung cap ((hang cong) OR (dang cong)) tan tran tap*.