Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
gian lang » gian dan
lang tinh » dang tinh, long tinh, bang tinh
cong cap » cung cap, cong cau, cong cac
cap gian » cap giay, cap giao, dan gian
khan cap » khan ap, than cap, khoan cam
phan lap » phan 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 cong cap gian lang tinh ((khan cap) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh cong cap gian lang tinh ((khan cap) OR (phan lap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh cong cap gian lang tinh ((khan cap) or (phan lap))*.