Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
dang xay » dang van, van xay
truc va » thuc vat, trung va
tai cua » thai cua, tai cuc, tri cua
thuc va » thuc vat, thuc dan, thuc day
so sach » so sanh, bo sach, co sach
sach tu » sach thu, cach tu, sach ty
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
tu dang » thu dang, tu dong, su dang
cua tre » cua te, cuu tre, cua triet
ve nam » he nam, va nam, le nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach tu dang xay hoi. hieu ve nam ((truc va) or (thuc va)) thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach tu dang xay hoi. hieu ve nam ((truc va) OR (thuc va)) thanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: so sach tu dang xay hoi. hieu ve nam ((truc va) or (thuc va)) thanh tai cua tre*.