Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tinh tinh » trinh tinh, tinh ninh, tinh binh
den tinh » yen tinh, diep tinh, bien tinh
cong san » cong tac
than tap » toan tap, han tap, than cap
phan tap » phan lap, han tap, pha tap
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: den tinh tinh - hanh ((thong tin) or (ban cua)) nhung cong san ((than tap) or (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: den tinh tinh - hanh ((thong tin) OR (ban cua)) nhung cong san ((than tap) OR (phan tap)).
• Adding a wildcard symbol may retrieve word variants: den tinh tinh - hanh ((thong tin) or (ban cua)) nhung cong san ((than tap) or (phan tap))*.