Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh tranh » canh tranh, hanh trinh, hanh trang
chua bang » chu bang, chua nang, chua xang
cong lang » cong vang, cong luong, cong quang
lang toan » dang toan, lang thang, lang thanh
cua bang » cua ban, cua dang, cua hang
toan cao » toan ban, toan tap

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) or (chiet tach)) - hanh tranh ((cua bang) OR (chua bang)) cong lang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chiet tach)) - hanh tranh ((cua bang) OR (chua bang)) cong lang toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chiet tach)) - hanh tranh ((cua bang) OR (chua bang)) cong lang toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chiet tach)) - hanh tranh ((cua bang) OR (chua bang)) cong lang toan cao*.