Perhaps you should try some spelling variations:
xang xay » dang xay, van xay, xang dau
hieu van » hieu va, thien van, lieu va
te sach » toc sach
sach ty » sach y, sach tu, sach thu
xay hoi » xa hoi, tay hoi, cay phoi
van lam » van nam
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty xang xay hoi. hieu van lam ((luc va) or (truc va)) hang va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang xay hoi. hieu van lam ((luc va) OR (truc va)) hang va cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty xang xay hoi. hieu van lam ((luc va) or (truc va)) hang va cua tre*.