Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tran » trung tuan, trung thanh, trung tam
tran dung » tran dang, tran hung, tran quang
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac

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 chu)) tinh - thanh trung tran dung ((cong tan) OR (cong san)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) tinh - thanh trung tran dung ((cong tan) OR (cong san)) van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chu)) tinh - thanh trung tran dung ((cong tan) OR (cong san)) van ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) tinh - thanh trung tran dung ((cong tan) OR (cong san)) van ban*.