Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chiet tach » chieu sach
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
ho chiet » ho chieu, ho thiet, hoc thiet
cong van » cong vang, cong san, song van
van van » tan van, san van, van vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - ((hanh tang) or (canh tranh)) cua nhung cong van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - ((hanh tang) OR (canh tranh)) cua nhung cong van van ban.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - ((hanh tang) or (canh tranh)) cua nhung cong van van ban*.