Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
manh nhung » manh hung, anh nhung, canh nhung
hoc thieu » toc thieu, hoc hien
nhung ba » nhung bai, nhung bac, nhung bi
ba nhung » ban nhung, va nhung, ba hung
cong san » cong tac
toan tap » toan ban

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 - manh nhung ba nhung ((cong san) or (huong dan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - manh nhung ba nhung ((cong san) OR (huong dan)) toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - manh nhung ba nhung ((cong san) or (huong dan)) toan tap*.