Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
vien nganh » vien thanh
manh trung » manh tung, thanh trung, manh hung
chua nang » chuc nang, chua xang, kha nang
cua nang » cua dang, cua hang, cua nong
song van » hoang van, trong van, duong van
ban can » ban dan, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (vien nganh)) - manh trung ((cua nang) or (chua nang)) song van ban can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (vien nganh)) - manh trung ((cua nang) OR (chua nang)) song van ban can.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (vien nganh)) - manh trung ((cua nang) or (chua nang)) song van ban can*.