Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh toan » thanh hoa, thanh san, tinh toan
hoc thieu » toc thieu, hoc hien
van duong » van dong, van dung, van phong
van cong » van dong, van phong, phan cong
cong dan » cong san, cong tan, cong dong
khan cap » khan ap, than cap, khoan cam

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh toan ((van duong) OR (van cong)) ((cong dan) OR (huong dan)) khan cap~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh toan ((van duong) OR (van cong)) ((cong dan) OR (huong dan)) khan cap*.