Perhaps you should try some spelling variations:
qua chat » qua nhat, qua cham, luan chat
dinh vai » dinh van, dinh vi, dinh va
vai cua » dai cua, hai cua, lai cua
sach ty » sach y, sach tu, sach thu
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
tang ma » mang may, tang van
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty ((nang xa) or (tang ma)) hoi. hieu qua chat ((xuc va) OR (tuc va)) dinh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty ((nang xa) OR (tang ma)) hoi. hieu qua chat ((xuc va) OR (tuc va)) dinh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty ((nang xa) or (tang ma)) hoi. hieu qua chat ((xuc va) OR (tuc va)) dinh vai cua tre*".