Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, nhieu tang
thong cong » trong cong, tong cong, thong thong
hieu lang » hieu quang, nhieu tang, hieu van
san thanh » ban thanh, van thanh, son thanh
thanh cap » thanh lap, hanh cap, than cap
hanh ban » thanh ban, hang ban, hanh san
va thong » va thuong, va phuong, he thong
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((hieu lang) OR (chieu sang))) or (chieu xanh)) - hanh ban va thong cong san thanh cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu lang) OR (chieu sang))) OR (chieu xanh)) - hanh ban va thong cong san thanh cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((hieu lang) OR (chieu sang))) or (chieu xanh)) - hanh ban va thong cong san thanh cap".
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu lang) OR (chieu sang))) or (chieu xanh)) - hanh ban va thong cong san thanh cap*.