Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, nhanh quang, hanh trang
nhan dang » nhan dan, phan dang, tran dang
dong cong » duong cong, dung cong, dang cong
chi xanh » chi anh, chi danh, chi hanh
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - ((nhan dang) or (nhanh thang)) cua dong cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((nhan dang) OR (nhanh thang)) cua dong cong dan than cao*.