Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong vang, song van, cong tan
cong san » cong tac
phan cau » phan dau, phan cac, phan tu
ap dung » van dung

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 - thanh trung ((ap dung) or (xay dung)) ((cong van) OR (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung ((ap dung) OR (xay dung)) ((cong van) OR (cong san)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh trung ((ap dung) or (xay dung)) ((cong van) OR (cong san)) phan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung ((ap dung) or (xay dung)) ((cong van) OR (cong san)) phan cau*.