Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
dang xay » dang van, van xay
vu sach » vu bach, su sach, vu khach
truc va » thuc va, thuc vat, trung va
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, tuc xa, duc va
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: vu sach thu ((nang xa) or (dang xay)) hoi. hieu ve cham ((tuc va) OR (truc va)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach thu ((nang xa) OR (dang xay)) hoi. hieu ve cham ((tuc va) OR (truc va)) hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach thu ((nang xa) or (dang xay)) hoi. hieu ve cham ((tuc va) OR (truc va)) hanh vi cua tre*".