Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
chong cong » cong cong, thong cong, cuong cong
doi chieu » doc hieu, doi chi, ho chieu
cua chong » cua cong, cua chung, cua khong
thanh lap » thanh san, thanh hai, thanh van
cong san » cong tac
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - ((thanh trung) or (thanh cong)) cua chong cong san ((thanh lap) OR (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - ((thanh trung) OR (thanh cong)) cua chong cong san ((thanh lap) OR (phan lap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - ((thanh trung) or (thanh cong)) cua chong cong san ((thanh lap) OR (phan lap))*".