Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » manh cua
doanh cua » doanh luan
30 trieu » 25 trieu
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan phan
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: 30 trieu tinh - canh ((tranh cua) or (doanh cua)) nhung cong van phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - canh ((tranh cua) OR (doanh cua)) nhung cong van phan dau.
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - canh ((tranh cua) or (doanh cua)) nhung cong van phan dau*.