Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
luat duoc » luat tuc
lam duoc » nam duoc, lam thuoc, tao duoc
thanh vi » hanh vi, thanh va, thanh ve
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
cua tre » cua te, cuu tre, cua triet
lam xuc » cam xuc
sang ma » tang ma, nang ma, sang tao
y sang » _ sang, duy sang
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y sang ma hoi. hieu van ((((lam xuc) OR (lam duoc))) or (luat duoc)) ban thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y sang ma hoi. hieu van ((((lam xuc) OR (lam duoc))) OR (luat duoc)) ban thanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y sang ma hoi. hieu van ((((lam xuc) OR (lam duoc))) or (luat duoc)) ban thanh vi cua tre*".