Perhaps you should try some spelling variations:
vien nganh » vien thanh
chieu sach » chinh sach, chiet tach, chieu sang
phan thanh » pham thanh, ban thanh, quan thanh
thanh van » thanh san, thanh toan, thanh phan
hung dang » huong dang, phung dang, dung dang
van thanh » ban thanh, van tuan
thanh tap » thanh lap, thanh tai, thanh tay
van hung » van dung, manh hung, van duong
dang van » hoang van, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((vien nganh) or (chieu sach)) - phan thanh van hung dang van thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((vien nganh) OR (chieu sach)) - phan thanh van hung dang van thanh tap.
• Adding a wildcard symbol may retrieve word variants: doc ((vien nganh) or (chieu sach)) - phan thanh van hung dang van thanh tap*.