Perhaps you should try some spelling variations:
hanh nhang » hanh nhung, nhanh thang, thanh thang
mot trieu » mot chieu, mot tri, mon triet
hanh nhan » thanh nhan, danh nhan, anh nhan
dung cong » dung trong
ho trieu » 25 trieu, 30 trieu, ho chieu
vat dung » van dung, va dung, viet dung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho trieu) or (mot trieu)) tinh - ((hanh nhang) or (hanh nhan)) vat dung cong dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho trieu) OR (mot trieu)) tinh - ((hanh nhang) OR (hanh nhan)) vat dung cong dan than tap.
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) or (mot trieu)) tinh - ((hanh nhang) or (hanh nhan)) vat dung cong dan than tap*.