Perhaps you should try some spelling variations:
canh trang » canh tranh, hanh trang, banh trang
thong cong » trong cong, tong cong, thong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
trang va » tran van, hang va
va thong » va thuong, va phuong, he thong
cong san » cong tac
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - canh trang va thong cong san ((toan tap) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - canh trang va thong cong san ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - canh trang va thong cong san ((toan tap) OR (toan ban))*.