Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
canh trinh » canh tranh, hanh trinh, canh tinh
bien tinh » bi tinh, yen tinh, diep tinh
dung cong » dung trong
vang toan » van toan, dang toan, quang toan
trinh ve » trinh he, trinh va, trinh vi
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 trinh ve ((nhung cong) or (dung cong)) vang toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho bien tinh - canh trinh ve ((nhung cong) OR (dung cong)) vang toan ban.
• Adding a wildcard symbol may retrieve word variants: ho bien tinh - canh trinh ve ((nhung cong) or (dung cong)) vang toan ban*.