Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
hanh tang » hanh trang, hanh mang, hanh tung
chu xanh » chu manh, chieu xanh, chua xang
anh tang » anh bang, anh dang, anh nang
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban
chu han » chu van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chu han)) - ((hanh tang) OR (anh tang)) cua nhung cong van toan ban~.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu han)) - ((hanh tang) or (anh tang)) cua nhung cong van toan ban*.