Perhaps you should try some spelling variations:
thien van » thi van
sach tri » sach tai, sach tren, sach truc
ban hanh » ban hang
pham cuc » pham chuc, pham duc, pham cua
tu sach » thu sach, su sach, te sach
lam cuc » lam cua, lam duoc
nang xa » lang xa, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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: tu sach tri ((nang xa) OR (nang x)) hoi. thien van ((lam cuc) OR (pham cuc)) ban hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tri ((nang xa) OR (nang x)) hoi. thien van ((lam cuc) or (pham cuc)) ban hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach tri ((nang xa) OR (nang x)) hoi. thien van ((lam cuc) or (pham cuc)) ban hanh vi cua tre*.