Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh mang » nhanh mang, hanh trang, nhanh lang
nco hieu » nho hieu, ngoc hieu, cao hieu
nhan dan » phan dau, gian dan, nhan tai
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban
co hieu » cao hieu, doc hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((co hieu) or (nco hieu)) lang - ((hanh mang) or (nhan dan)) va nhung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co hieu) OR (nco hieu)) lang - ((hanh mang) OR (nhan dan)) va nhung cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((co hieu) or (nco hieu)) lang - ((hanh mang) or (nhan dan)) va nhung cong tan toan ban*.