Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
quan trong » gian trong
hoc thieu » toc thieu
tran quan » tran quang, tran xuan, tran tuan
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
phan dau » phan tu, hang dau

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) OR (hoc hien)) tinh - thanh tran quan trong ((cong dan) OR (cong san)) phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (hoc hien)) tinh - thanh tran quan trong ((cong dan) OR (cong san)) phan dau~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) tinh - thanh tran quan trong ((cong dan) OR (cong san)) phan dau*.