Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
doc chau » moc chau, doc chat, doc thau
trinh va » trinh van, trinh vat, trinh vi
trinh ve » trinh he, trinh vi, trinh viet
cong san » cong tac
san hang » san chang, ban hang, van hang
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chau tinh - hanh ((trinh va) or (trinh ve)) trong cong san hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chau tinh - hanh ((trinh va) OR (trinh ve)) trong cong san hang dau.
• Adding a wildcard symbol may retrieve word variants: doc chau tinh - hanh ((trinh va) or (trinh ve)) trong cong san hang dau*.