Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
hoc trieu » hoc thieu, hoc tieu, hoc dieu
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau
va dung » van dung, va duong, vat dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc trieu tinh - ((hanh trinh) or (canh tranh)) va dung cong dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc trieu tinh - ((hanh trinh) OR (canh tranh)) va dung cong dan phan dau.
• Adding a wildcard symbol may retrieve word variants: hoc trieu tinh - ((hanh trinh) or (canh tranh)) va dung cong dan phan dau*.