Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang
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 ((chieu sang) or (hieu manh)) - thanh trung ((cua dung) OR (cua dong)) cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu manh)) - thanh trung ((cua dung) OR (cua dong)) cong thanh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (hieu manh)) - thanh trung ((cua dung) OR (cua dong)) cong thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu manh)) - thanh trung ((cua dung) OR (cua dong)) cong thanh toan ban*.