Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
chao chu » cho chu, cua chu, cao cho
chu xanh » chu manh, chieu xanh, chua xang
van toan » van tuan, van tan, van thanh

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: chao chu xanh - hanh trinh cua nhung cong ((van toan) OR (tan tran)) cao~.
• Adding a wildcard symbol may retrieve word variants: chao chu xanh - hanh trinh cua nhung cong ((van toan) or (tan tran)) cao*.