Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
trung tuan » trung thanh, tran tuan, truong thanh
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
thanh bac » nhanh bac, thanh bai, thanh san
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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