Perhaps you should try some spelling variations:
nang thuong » hang thuong, nang truong, dang thuong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nang huong » nang luong, hang thuong, bang phuong
cong thanh » dong thanh, cong trinh, truong thanh
cua thong » cua thuong, cua khong, cua tong
cong tan » cong tac, cong san, cong ty
hoa tan » hoa dan, hoa van, hoa tin

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 - ((nang huong) or (nang thuong)) cua thong ((cong thanh) OR (cong tan)) hoa tan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((nang huong) OR (nang thuong)) cua thong ((cong thanh) OR (cong tan)) hoa tan*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ((nang huong) or (nang thuong)) cua thong ((cong thanh) OR (cong tan)) hoa tan*".