Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, nhieu tang
thuong cao » truong cao, thong cao, thuong chau
hieu lang » hieu quang, nhieu tang, hieu van
dung cong » dung trong
cao dung » cao dang, cao dong, cao ung
cong tac » cong ty
tac chan » tac chuan, tac can, tac chon
chan cau » phan cau, can cau, chinh cau

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 sach)) - thanh thuong cao dung cong tac chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu lang) OR (chieu sang))) OR (chieu sach)) - thanh thuong cao dung cong tac chan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((hieu lang) OR (chieu sang))) or (chieu sach)) - thanh thuong cao dung cong tac chan cau*".