Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
lang van » dang van, tang van, hoang van
sach thu » sach thue, sach thieu, sach tham
tai cua » thai cua, tai cuc, tri cua
tuc gia » tac gia, duc gia, toc gia
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, xach tay
lang xa » lang ha, dang xay
cua tre » cua te, cuu tre, cua triet
co tuc » co thuc, co tu, co toc
va co » vo co

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) or (sach thu)) ((lang xa) OR (lang van)) hoi. hieu va co tuc gia thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach thu)) ((lang xa) OR (lang van)) hoi. hieu va co tuc gia thanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) or (sach thu)) ((lang xa) OR (lang van)) hoi. hieu va co tuc gia thanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach thu)) ((lang xa) OR (lang van)) hoi. hieu va co tuc gia thanh tai cua tre*.