Perhaps you should try some spelling variations:
thieu khang » thieu quang
chieu khong » chien chong, chu khong, chieu duong
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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 khang) OR (chieu khong)) - hanh tranh cua cong cong tan toan ban~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu khang) OR (chieu khong)) - hanh tranh cua cong cong tan toan ban*.