Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
cua thong » cua thuong, cua khong, cua tong
cua tinh » cua sinh, va tinh, ha tinh
mang cua » manh cua, dung cua, ban cua
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: ho ((hieu lang) or (cua tinh)) - (cach OR sach) mang cua thong ((cong dan) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (cua tinh)) - (cach OR sach) mang cua thong ((cong dan) OR (cong tan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (cua tinh)) - (cach OR sach) mang cua thong ((cong dan) or (cong tan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (cua tinh)) - (cach OR sach) mang cua thong ((cong dan) or (cong tan)) toan ban*.