Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh
phan hieu » van hieu, phan kien, gian hieu
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "phan hieu lang - ((hanh trinh) OR (hanh chinh)) cua nhung cong tan toan cau~".
• Adding a wildcard symbol may retrieve word variants: phan hieu lang - ((hanh trinh) OR (hanh chinh)) cua nhung cong tan toan cau*.