Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
thanh bac » nhanh bac, thanh bai, thanh san
tranh va » tranh van, trang va, trinh va
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu sach)) - hanh tranh va nhung ((cong van) OR (song van)) thanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sach)) - hanh tranh va nhung ((cong van) OR (song van)) thanh bac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (chieu sach)) - hanh tranh va nhung ((cong van) OR (song van)) thanh bac".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sach)) - hanh tranh va nhung ((cong van) OR (song van)) thanh bac*.