Perhaps you should try some spelling variations:
bien tinh » bi tinh, yen tinh, ban tinh
trinh vat » trinh van, trinh luat, sinh vat
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
trinh va » trinh van, trinh ve, trinh vi
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((diep tinh) or (bien tinh)) - canh ((trinh va) or (trinh vat)) dung cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((diep tinh) OR (bien tinh)) - canh ((trinh va) OR (trinh vat)) dung cong manh toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((diep tinh) or (bien tinh)) - canh ((trinh va) or (trinh vat)) dung cong manh toan ban*.