Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
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 tap » toan ban
manh va » anh va, minh va, lanh va
hanh va » hang va, hanh vi

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