Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu sach » chinh sach, chiet tach, chieu sang
thuong cao » truong cao, thong cao, thuong chau
hieu lang » chieu sang, hieu quang, nhieu tang
bang cong » dang cong, bang song, hang cong
cao bang » cao dang, cao tang, cao nang
cong van » cong vang, cong san, song van
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (hieu lang)) - thanh thuong cao bang cong van ((than cau) OR (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (hieu lang)) - thanh thuong cao bang cong van ((than cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (hieu lang)) - thanh thuong cao bang cong van ((than cau) OR (phan cau))".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (hieu lang)) - thanh thuong cao bang cong van ((than cau) OR (phan cau))*.