Perhaps you should try some spelling variations:
thieu sach » chieu sach, hieu cach, theo sach
thien hach » thien thanh, hien hanh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thieu sach) OR (thien hach)) - hanh tranh cua nhung ((cong dan) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu sach) OR (thien hach)) - hanh tranh cua nhung ((cong dan) OR (cong tan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu sach) OR (thien hach)) - hanh tranh cua nhung ((cong dan) or (cong tan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu sach) OR (thien hach)) - hanh tranh cua nhung ((cong dan) or (cong tan)) toan ban*.