Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
trung cua » truong cua, trung tuan, trung cap
doc hieu » toc thieu, hoc thieu, hoc hien
ho chieu » hoc thieu, doi chieu, mot chieu
tong dan » tuong dan, thong dan, trong dan
cua han » cua hang, cua nhan, cua phan
dan van » dang van, doan van, dao van

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) or (((theo chieu) OR (ho chieu)))) xanh - thanh trung cua han tong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (((theo chieu) OR (ho chieu)))) xanh - thanh trung cua han tong dan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (((theo chieu) OR (ho chieu)))) xanh - thanh trung cua han tong dan van ban".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (((theo chieu) OR (ho chieu)))) xanh - thanh trung cua han tong dan van ban*.