Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
tong cong » trong cong, cong cong, dang cong
dung cong » dung trong
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - ((thanh thang) or (canh tranh)) cua ((tong cong) OR (dung cong)) tan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((thanh thang) OR (canh tranh)) cua ((tong cong) OR (dung cong)) tan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((thanh thang) or (canh tranh)) cua ((tong cong) OR (dung cong)) tan than cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((thanh thang) or (canh tranh)) cua ((tong cong) OR (dung cong)) tan than cau*.