Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
trung tuan » trung thanh, trung tam, truong thanh
hoc thieu » toc thieu, hoc hien
tran tuan » tran xuan, tran quang, tran thanh
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 - thanh ((trung tuan) OR (tran tuan)) trong cong dan toan cao~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - thanh ((trung tuan) or (tran tuan)) trong cong dan toan cao*.