Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
hien sach » dien sach, thien hach, chieu sach
kien sach » dien sach, vien bach, kien mac
canh manh » lanh manh, canh tranh, cach mang
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
manh cua » doanh cua, ban cua
tuan cau » toan cau, quan cau, tuan cu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien sach) OR (kien sach)) - canh manh cua ((hang cong) OR (dang cong)) quang tuan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien sach) OR (kien sach)) - canh manh cua ((hang cong) or (dang cong)) quang tuan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien sach) OR (kien sach)) - canh manh cua ((hang cong) or (dang cong)) quang tuan cau*.