Perhaps you should try some spelling variations:
trinh vatn » trinh van, trinh han, trinh san
trinh vat » trinh van, trinh luat, sinh vat
cong cong » cong dong, trong cong, dung cong
van thanh » ban thanh, van tuan
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
ban hang » ngan hang

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: theo chu xanh - canh ((trinh vat) OR (trinh vatn)) cong cong ((van thanh) OR (ban hang)) cau~.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - canh ((trinh vat) or (trinh vatn)) cong cong ((van thanh) or (ban hang)) cau*.