Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
thanh vai » thanh hai, thanh tai, thanh oai
toc sach » hoc sach, doc sach, thuoc sach
cau tren » cu tren, dau tren, ca tren
dang xay » dang van, van xay
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
tu dang » thu dang, tu dong, su dang
cuu tre » cua tre, cau treo
co toc » cao toc, co hoc, co doc
toc va » hoc va, toc ta, tuc va
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach tu dang xay hoi. hieu va co toc va ((thanh vai) or (thanh van)) ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach tu dang xay hoi. hieu va co toc va ((thanh vai) OR (thanh van)) ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach tu dang xay hoi. hieu va co toc va ((thanh vai) or (thanh van)) ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: toc sach tu dang xay hoi. hieu va co toc va ((thanh vai) or (thanh van)) ((cuu tre) OR (cau tren))*.