Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
truong cao » truong dai
hoc thieu » toc thieu, hoc hien
trung cap » trung tam
han cong » phan cong, hang cong, hanh cong
cong san » cong tac
phan cau » phan dau, phan cac, phan lap

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 ((trung cap) or (truong cao)) han cong san ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh ((trung cap) OR (truong cao)) han cong san ((phan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh ((trung cap) or (truong cao)) han cong san ((phan cau) or (phan tu))*.