Perhaps you should try some spelling variations:
dang xay » dang van, van xay
va thanh » gia thanh, ban thanh, va tinh
thanh di » thanh doi, thanh de, thanh do
sach ty » sach tu, sach thu, xach tay
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
cac toc » cac toi, cac nuoc, cac thoi
toc va » hoc va, toc ta, tuc va
di cua » dai cua, doi cua, de cua
cua cu » cua chu, cua cau, cua su

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) or (sach y)) dang xay hoi. hieu va cac toc va thanh di cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ty) OR (sach y)) dang xay hoi. hieu va cac toc va thanh di cua cu.
• Adding a wildcard symbol may retrieve word variants: vu ((sach ty) or (sach y)) dang xay hoi. hieu va cac toc va thanh di cua cu*.