Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
hieu cach » hieu cac, chieu sach, hieu ca
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu cach - thanh thang ((((cua cong) or (cua ban))) or (cua nhung)) cong tac phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cach - thanh thang ((((cua cong) OR (cua ban))) OR (cua nhung)) cong tac phan dau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - thanh thang ((((cua cong) or (cua ban))) or (cua nhung)) cong tac phan dau*.