Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua tong » cua cong, cua dong, cua nong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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: hoc thieu tinh - canh tranh cua tong ((cong dan) OR (cong san)) ((toan cao) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - canh tranh cua tong ((cong dan) or (cong san)) ((toan cao) or (toan ban))*.