Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
thanh vai » thanh hai, thanh van, thanh oai
pham duy » pham duc
duy van » duy vat, dung van
te sach » toc sach
sach ly » sach y, sach lo, sach ty
vu pham » su pham, vi pham, vu kham
hieu vu » hieu va, hieu ve, hieu su
ly hang » ly quang
cua tre » cua te, cuu tre, cua triet

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: te sach ly hang ((xa hoi) OR (ma hoa)). hieu vu pham duy van ((thanh vai) OR (thanh tai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly hang ((xa hoi) or (ma hoa)). hieu vu pham duy van ((thanh vai) OR (thanh tai)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ly hang ((xa hoi) or (ma hoa)). hieu vu pham duy van ((thanh vai) OR (thanh tai)) cua tre*.