Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
quang dung » quang trung, ung dung, cuong dung
bien tinh » bi tinh, yen tinh, diep tinh
hanh manh » hanh mang, lanh manh, hoang manh
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van
dien » vien, tien

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

• Performing a fuzzy search may retrieve terms with similar spellings: dien bien tinh - ((hanh manh) or (nhanh lang)) quang dung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dien bien tinh - ((hanh manh) OR (nhanh lang)) quang dung cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: dien bien tinh - ((hanh manh) or (nhanh lang)) quang dung cong dan van ban*.