Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
dang xay » dang van, van xay
cua nhan » ca nhan, cua ngan, cua nha
sach ky » sac ky, sach y, sach ty
cua nam » cua tam, cua ngan
lang xa » lang ha, lang van
vat dan » va dan, van dan, vat ran
dan vai » dan va, dan tai, dan vat
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky ((lang xa) OR (dang xay)) hoi. hieu ((cua nam) OR (cua nhan)) thuc vat dan vai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky ((lang xa) or (dang xay)) hoi. hieu ((cua nam) OR (cua nhan)) thuc vat dan vai cuu tre~".
• Adding a wildcard symbol may retrieve word variants: toc sach ky ((lang xa) or (dang xay)) hoi. hieu ((cua nam) OR (cua nhan)) thuc vat dan vai cuu tre*.