Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh dung » thanh duong, thanh tung, thanh hung
hieu lang » hieu quang, nhieu tang, hieu van
luan bang » luan nang, luan ban, luan tang
bang cong » dang cong, bang song, hang cong
cong danh » cuong danh, cong dan, cong thanh
danh van » doanh van, dang van, dinh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu lang) OR (chieu sang)) - thanh dung luan bang cong danh van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu lang) OR (chieu sang)) - thanh dung luan bang cong danh van ban".
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) OR (chieu sang)) - thanh dung luan bang cong danh van ban*.