Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
phuong cau » huong cau, phuong cham, phuong cach
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
ho chieu » hoc thieu, doi chieu, mot chieu
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh

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