Perhaps you should try some spelling variations:
nnhanh lang » nhan lang, nhanh mang
nhanh lang » nhanh quang, nhanh thang, nhan dang
tieu sang » chieu sang, tieu dung, tiem nang
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sang - ((nhanh lang) or (nnhanh lang)) cua dung ((cong dan) OR (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - ((nhanh lang) OR (nnhanh lang)) cua dung ((cong dan) OR (cong tan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sang - ((nhanh lang) or (nnhanh lang)) cua dung ((cong dan) OR (cong tan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - ((nhanh lang) or (nnhanh lang)) cua dung ((cong dan) OR (cong tan)) toan ban*.