Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trung dap » trung cap, trung dai, trung dam
dap hang » dat hang, dai hang, dai thang
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van
thong tu » phong tuc, thong tin, thong ke

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - thanh trung dap hang ((cong van) OR (song van)) thong tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh trung dap hang ((cong van) OR (song van)) thong tu*".