Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
trung tuan » trung thanh, trung tam, tran tuan
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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 ((dung cua) or (trung tuan)) thong cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh ((dung cua) OR (trung tuan)) thong cong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh ((dung cua) or (trung tuan)) thong cong dan chan cau*.