Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
cong cua » cong cu, dong cua, huong cua
cong ban » cong bang, cong tan, cong dan
cong tac » cong ty
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 cong cua nhung ((cong ban) or (((cong san) or (cong tac)))) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh cong cua nhung ((cong ban) OR (((cong san) OR (cong tac)))) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh cong cua nhung ((cong ban) or (((cong san) or (cong tac)))) toan cau*.