Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
tranh viet » tran viet, trinh viet, trang viet
viet chung » viet hung, viet phuong, viet thuong
hoc thieu » toc thieu, hoc hien
cong dang » cong dong, cong dung, cong danh
thanh lap » thanh san, phan lap, thanh hai
cong dan » cong san, cong tan, huong dan

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 - canh tranh viet chung ((cong dan) OR (cong dang)) thanh lap~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu khang - canh tranh viet chung ((cong dan) OR (cong dang)) thanh lap*.