Perhaps you should try some spelling variations:
phuong cham » phuong phap, phuong thao
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
phuong cau » huong cau, phuong cach, thuong chau
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong ban » cong bang, cong san, cong tan

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 cua thong cong ban ((phuong cau) or (phuong cham))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh trung cua thong cong ban ((phuong cau) OR (phuong cham)).
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh trung cua thong cong ban ((phuong cau) or (phuong cham))*.