Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
anh sang » lanh sang, anh bang, anh dang
anh nang » ganh nang, anh bang, anh dang
cong tac » cong ty
ho chau » ha chau, ho chu, khoa chau
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: ((ho chau) OR (o chau)) tinh - ((anh sang) or (anh nang)) cua nhung cong tac van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chau) OR (o chau)) tinh - ((anh sang) OR (anh nang)) cua nhung cong tac van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chau) OR (o chau)) tinh - ((anh sang) or (anh nang)) cua nhung cong tac van ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chau) OR (o chau)) tinh - ((anh sang) or (anh nang)) cua nhung cong tac van ban*.