Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
trinh quan » tinh quang, trinh han
nhung cong » dung cong, thong cong, hang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan cau » toan cao, toan ban, toan tap
luat » luan, xuat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) OR (chinh sach)) - hanh ((trinh luat) or (trinh quan)) nhung cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - hanh ((trinh luat) OR (trinh quan)) nhung cong manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chinh sach)) - hanh ((trinh luat) or (trinh quan)) nhung cong manh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chinh sach)) - hanh ((trinh luat) or (trinh quan)) nhung cong manh toan cau*.