Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua
cong san » cong tac
phan cau » phan cac, phan tu, toan cau
phan dau » phan tu, hang dau

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 tung cua nhung cong san ((phan cau) or (((phan lap) or (phan dau))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh tung cua nhung cong san ((phan cau) OR (((phan lap) OR (phan dau)))).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh tung cua nhung cong san ((phan cau) or (((phan lap) or (phan dau))))*.