Perhaps you should try some spelling variations:
ngang thanh » nang thanh, nganh thanh, ngan thanh
thiet tach » chiet tach, thien hach, thuat tach
cong ngang » cong nhan, cong quang, cong lang
canh manh » lanh manh, canh tranh, cach mang
thanh thu » thanh thuy, thanh tu, khanh thu
ho thiet » hoc thiet, hoa thiet, so thiet

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho thiet tach - canh manh ((cua nhung) or (va nhung)) cong ngang thanh thu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho thiet tach - canh manh ((cua nhung) OR (va nhung)) cong ngang thanh thu.
• Adding a wildcard symbol may retrieve word variants: ho thiet tach - canh manh ((cua nhung) or (va nhung)) cong ngang thanh thu*.