Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
luat chung » luat thuong, cua chung, luat cong
luan chung » luan chinh
hoc thieu » toc thieu, hoc hien
cong danh » cuong danh, cong thanh, cong khanh
cong dan » cong san, cong tan, huong dan
tuan cau » toan cau, quan cau, tuan cu

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 - canh tranh ((luat chung) OR (luan chung)) ((cong danh) or (cong dan)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - canh tranh ((luat chung) OR (luan chung)) ((cong danh) OR (cong dan)) tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - canh tranh ((luat chung) OR (luan chung)) ((cong danh) or (cong dan)) tuan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - canh tranh ((luat chung) OR (luan chung)) ((cong danh) or (cong dan)) tuan cau*.