Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
thanh tran » thanh trang, thanh toan, thanh tra
phung cong » nhung cong, phong cong, nhung chong
hoc thieu » toc thieu, hoc hien
van phung » van phong, van hung, van chuong
tran van » luan van
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, can cau, chinh cau
chinh ca » chinh ta, chinh va, chinh tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - thanh tran van phung cong dan ((chan cau) or (chinh ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh tran van phung cong dan ((chan cau) OR (chinh ca))*.