Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
hanh thang » nhanh thang, hanh trang, danh thang
thong cong » trong cong, tong cong, thong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
va thong » va thuong, va phuong, he thong
cong tan » cong tac, cong san, cong thanh

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh thang) OR (thanh thang)) va thong cong tan ((toan ban) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh thang) or (thanh thang)) va thong cong tan ((toan ban) OR (van ban))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh thang) or (thanh thang)) va thong cong tan ((toan ban) OR (van ban))*.