Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
cong thanh » dong thanh, cong trinh, truong thanh
hoc thieu » toc thieu, hoc hien
trang cua » tranh cua, tang cua, trung cua
tran tuan » tran xuan, tran quang, tran thanh
cong tan » cong tac, cong san, cong ty

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh ((trang cua) OR (tran tuan)) hang ((cong tan) OR (cong thanh)) van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - hanh ((trang cua) or (tran tuan)) hang ((cong tan) OR (cong thanh)) van ban~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh ((trang cua) or (tran tuan)) hang ((cong tan) OR (cong thanh)) van ban*.