Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
phuong dan » phuong danh, phuong doan, huong dan
doi chieu » doc hieu, doi chi, ho chieu
tung tran » trung tran, hung tran, huong tran
tran bang » tran dang, tuan bang, tran quang
thanh cac » hanh cac, thanh bac, thanh ca
than cap » khan cap, thanh lap, than cua

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 - thanh tung tran bang phuong dan ((than cap) OR (thanh cac))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh tung tran bang phuong dan ((than cap) OR (thanh cac))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung tran bang phuong dan ((than cap) OR (thanh cac))*.