Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
vat dung » van dung, viet dung, mat duong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
va dung » van dung, va duong, va ung

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 tinh - thanh trung ((va dung) OR (vat dung)) cong dan toan cao~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - thanh trung ((va dung) OR (vat dung)) cong dan toan cao*.