Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
bang thanh » ban thanh, dang thanh, tang thanh
dung cong » dung trong
cong bang » cuong bang, dong bang, hong bang
thanh cac » hanh cac, thanh bac, thanh ca
trang va » hang va
tran van » luan van

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 xanh) or (chieu sang)) - thanh ((trang va) OR (tran van)) dung cong bang thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - thanh ((trang va) OR (tran van)) dung cong bang thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sang)) - thanh ((trang va) OR (tran van)) dung cong bang thanh cac".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - thanh ((trang va) OR (tran van)) dung cong bang thanh cac*.