Perhaps you should try some spelling variations:
quang tuan » quang thanh, quang cua
phung cong » nhung cong, phong cong, nhung chong
bien tinh » bi tinh, yen tinh, diep tinh
cong san » cong tac
san tuan » van tuan, san luan, san quan
tuan cap » than cap, thuan cam, toan cao
so bien » mot bien

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

• Performing a fuzzy search may retrieve terms with similar spellings: so bien tinh - than ((quang tuan) or (quan luan)) phung cong san tuan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so bien tinh - than ((quang tuan) OR (quan luan)) phung cong san tuan cap*.