Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trung » thanh trung, hanh trang, manh trung
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
ho chieu » theo chieu, hoc thieu, doi chieu
hoc hang » hoc hanh, hoc bang, hoc han
hoc tang » hoc bang, hoc tan, hoc tieng
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 - hanh trung ((hoc hang) or (hoc tang)) cong danh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh trung ((hoc hang) OR (hoc tang)) cong danh toan ban*.