Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
nhung cong » dung cong, hang cong, nhung don
bien tinh » bi tinh, yen tinh, diep tinh
tranh cua » doanh cua, manh cua
toan cao » toan tap
toan ban » van ban
ho bien » pho bien, hoa bien, so bien

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho bien tinh - canh tranh cua ((nhung cong) or (thong cong)) tan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho bien tinh - canh tranh cua ((nhung cong) OR (thong cong)) tan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho bien tinh - canh tranh cua ((nhung cong) or (thong cong)) tan ((toan cao) or (toan ban))*.