Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
dang cong » dung cong
van thanh » ban thanh, van tuan
thanh cac » hanh cac, thanh bac, thanh ca
chi sang » chi lang, chieu sang, chi chang
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sang - canh tranh luan ((((nhung cong) OR (thong cong))) or (dang cong)) van thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sang - canh tranh luan ((((nhung cong) OR (thong cong))) OR (dang cong)) van thanh cac*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi sang - canh tranh luan ((((nhung cong) OR (thong cong))) or (dang cong)) van thanh cac*".