Perhaps you should try some spelling variations:
trong xay » thong xay, trong cac, trong ca
hieu van » hieu va, thien van, lieu va
trinh vi » trinh va, trinh ve, trinh viet
vu sach » vu bach, su sach, vu khach
tinh vi » tinh voi, tinh va, dinh vi
coc tuc » coc luc, hoc thuc, doc thuc
van coc » van hoc, van loc, van co
sach ty » sach y, sach tu, sach thu
tang xa » trang xa, tang ma, lang xa
cua tre » cua te, cuu tre, cua triet
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 ((tang xa) or (trong xay)) hoi. hieu van coc tuc va ((tinh vi) or (trinh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty ((tang xa) OR (trong xay)) hoi. hieu van coc tuc va ((tinh vi) OR (trinh vi)) cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach ty ((tang xa) or (trong xay)) hoi. hieu van coc tuc va ((tinh vi) or (trinh vi)) cua tre*.