Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
bien tinh » bi tinh, yen tinh, diep tinh
canh manh » lanh manh, canh tranh, cach mang
cua thong » cua thuong, cua khong, cua tong
pho bien » phan bien, che bien, so bien
manh cua » doanh cua, ban cua
san toan » van toan, dan toan, manh toan
dan than » dan chan, ban than, van than

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

• If you are trying to use Boolean operators, they must be ALL CAPS: pho bien tinh - canh manh cua thong cong ((san toan) OR (dan than)) cao~.
• Adding a wildcard symbol may retrieve word variants: pho bien tinh - canh manh cua thong cong ((san toan) or (dan than)) cao*.