Perhaps you should try some spelling variations:
thanh hung » thanh huong, thanh tung, thanh trung
tuan thang » xuan thang, toan thang, tran thang
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
hung tuan » hung tran, quang tuan, trung tuan
long span » dong san, nong san, long van
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: ((hoc chieu) or (hoc thieu)) sach - thanh hung tuan thang ((cong san) or (long span)) thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) sach - thanh hung tuan thang ((cong san) OR (long span)) thanh san.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc thieu)) sach - thanh hung tuan thang ((cong san) or (long span)) thanh san*.