Perhaps you should try some spelling variations:
thuong thong » thuong trong, thuong phuong, thuong truong
chieu sach » chinh sach, chiet tach, chieu sang
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tang » hanh trang, anh tang, hanh mang
tran tuan » tran xuan, tran quang, tran thanh
tang cua » mang cua, hang cua, tang luan
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (hieu lang)) - hanh tang cua ((thuong thong) OR (thong thong)) tran tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (hieu lang)) - hanh tang cua ((thuong thong) OR (thong thong)) tran tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (hieu lang)) - hanh tang cua ((thuong thong) OR (thong thong)) tran tuan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (hieu lang)) - hanh tang cua ((thuong thong) OR (thong thong)) tran tuan ban*.