Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
hay nhung » tay nhung, tham nhung, thai nhung
ha nhung » hoa nhung, pha nhung, va nhung
cong san » cong tac
san toan » van toan, dan toan, manh toan
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 (chieu xanh)) - thanh trung ((ha nhung) OR (hay nhung)) cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - thanh trung ((ha nhung) OR (hay nhung)) cong san toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chieu xanh)) - thanh trung ((ha nhung) OR (hay nhung)) cong san toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu xanh)) - thanh trung ((ha nhung) OR (hay nhung)) cong san toan ban*.