Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
chieu sang » chieu sach, chieu xanh, hieu lang
canh dinh » canh tinh, anh dinh, canh binh
cong danh » cuong danh, cong dan, cong khanh
ho chieu » theo chieu, hoc thieu, doi chieu
van bang » van ban, van nang, von bang
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 - canh dinh van bang ((cong thanh) or (cong danh)) ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh dinh van bang ((cong thanh) OR (cong danh)) ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh dinh van bang ((cong thanh) or (cong danh)) ((toan tap) or (toan ban))*.