Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
cao thuong » cao truong, ca thuong, cho thuong
trung cao » truong cao, trung cap, trung co
ho chieu » hoc thieu, doi chieu, mot chieu
con ban » con bang, co ban, can ban
co dan » co ban, ca dan, cao dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (theo chieu)) tinh - thanh trung cao thuong ((co dan) or (con ban)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) tinh - thanh trung cao thuong ((co dan) OR (con ban)) phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) tinh - thanh trung cao thuong ((co dan) or (con ban)) phan tu".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) tinh - thanh trung cao thuong ((co dan) or (con ban)) phan tu*.