Perhaps you should try some spelling variations:
dung cong » dung trong
chau tinh » cuu tinh, ha tinh, cua tinh
anh sang » lanh sang, anh bang, anh dang
anh nang » ganh nang, anh bang, anh dang
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tac van » tac vang, cac van, tac va
o chau » a chau, 3 chau, moc chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: o chau tinh - ((anh sang) or (anh nang)) cua dung cong tac van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: o chau tinh - ((anh sang) OR (anh nang)) cua dung cong tac van ban.
• Adding a wildcard symbol may retrieve word variants: o chau tinh - ((anh sang) or (anh nang)) cua dung cong tac van ban*.