Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, tran tuan
truong cao » truong dai
doi chieu » doc hieu, doi chi, ho chieu
cong manh » duong manh, cong thanh, hoang manh
cong danh » cuong danh, cong dan, cong thanh
toan cao » toan ban, toan tap

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 - manh ((trung tuan) or (truong cao)) nhung ((cong manh) OR (cong danh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - manh ((trung tuan) OR (truong cao)) nhung ((cong manh) OR (cong danh)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - manh ((trung tuan) or (truong cao)) nhung ((cong manh) OR (cong danh)) toan cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - manh ((trung tuan) or (truong cao)) nhung ((cong manh) OR (cong danh)) toan cao*.