Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, canh tinh, anh trinh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
tran thanh » van thanh, quan thanh
doi chieu » doc hieu, doi chi, ho chieu
ban thanh » ban hanh, ban hang
va thong » va thuong, va phuong, he thong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - ((canh trinh) or (hanh trinh)) va thong cong ((tran thanh) OR (ban thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((canh trinh) OR (hanh trinh)) va thong cong ((tran thanh) OR (ban thanh)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((canh trinh) or (hanh trinh)) va thong cong ((tran thanh) OR (ban thanh)) cau*".