Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
luat nhung » luat chung, luat thuong, thuat nhung
nhung cong » dung cong, thong cong, hang cong
hoang van » hang va
co sach » bo sach, cuon sach, hoc sach
dan van » dang van, doan van, dao van
doi co » doi bo, moi co, hoi co

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi co sach - hanh trinh luat nhung cong ((dan van) or (hoang van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi co sach - hanh trinh luat nhung cong ((dan van) OR (hoang van)) ban.
• Adding a wildcard symbol may retrieve word variants: doi co sach - hanh trinh luat nhung cong ((dan van) or (hoang van)) ban*.