Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, nhan sinh
hanh trinh » canh tranh, hanh chinh
chi xanh » chi anh, chi danh, chi hanh
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan
doi chi » doi khi
dan van » dang van, doan van, dao van

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 - ((nhanh tinh) OR (hanh trinh)) ((cua dung) or (cua dang)) cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((nhanh tinh) OR (hanh trinh)) ((cua dung) OR (cua dang)) cong dan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - ((nhanh tinh) OR (hanh trinh)) ((cua dung) or (cua dang)) cong dan van ban".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - ((nhanh tinh) OR (hanh trinh)) ((cua dung) or (cua dang)) cong dan van ban*.