Perhaps you should try some spelling variations:
thien van » thi van
ban hanh » ban hang
dang xay » dang van, van xay
sach ty » sach y, sach tu, sach thu
van cam » van nam, van lam, van cau
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua
tuan » quan, tran, luan

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 ty ((nang xa) or (dang xay)) hoi. thien van cam xuc ((ban hanh) or (tuan anh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang xa) OR (dang xay)) hoi. thien van cam xuc ((ban hanh) OR (tuan anh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang xa) or (dang xay)) hoi. thien van cam xuc ((ban hanh) or (tuan anh)) di cua tre*.