Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
trinh vat » trinh van, trinh luat, sinh vat
nang cong » nang song, dang cong, bang cong
vat nang » van nang, va nang, vat mang
dan toan » dan than, manh toan, dien toan
van toan » van tuan, van tan, van thanh
dong » dung
trieu » thieu, trien, tieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong trieu tinh - canh trinh vat nang cong ((((dan toan) or (xuan toan))) or (van toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong trieu tinh - canh trinh vat nang cong ((((dan toan) OR (xuan toan))) OR (van toan)) cau.
• Adding a wildcard symbol may retrieve word variants: dong trieu tinh - canh trinh vat nang cong ((((dan toan) or (xuan toan))) or (van toan)) cau*.