Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, hanh mang, nhanh quang
nhan dang » nhan dan, phan dang, tran dang
cua nhung » va nhung
chao chu » cho chu, cua chu, cao cho
chu xanh » chu manh, chieu xanh, chua xang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao chu xanh - ((nhanh mang) or (nhan dang)) cua nhung ((cong dan) OR (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao chu xanh - ((nhanh mang) OR (nhan dang)) cua nhung ((cong dan) OR (cong san)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao chu xanh - ((nhanh mang) or (nhan dang)) cua nhung ((cong dan) OR (cong san)) toan tap".
• Adding a wildcard symbol may retrieve word variants: chao chu xanh - ((nhanh mang) or (nhan dang)) cua nhung ((cong dan) OR (cong san)) toan tap*.