Perhaps you should try some spelling variations:
dang xay » dang van, van xay
toc sach » hoc sach, doc sach, thuoc sach
cam truc » cau truc, nam truc, lam truoc
tai cuu » tai cuc, tai buu, tai cua
han tai » hang tai, nhan tai, van tai
truc va » thuc va, thuc vat, trung va
tu sach » thu sach, su sach, te sach
lang xa » lang ha, lang van
cuu tre » cua tre, cau tren, cau treo
va cam » va cham, va cac, va cao
va han » va phan, van han, va hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (toc sach)) ky ((lang xa) OR (dang xay)) hoi. lieu va cam truc va han tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (toc sach)) ky ((lang xa) OR (dang xay)) hoi. lieu va cam truc va han tai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (toc sach)) ky ((lang xa) OR (dang xay)) hoi. lieu va cam truc va han tai cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (toc sach)) ky ((lang xa) OR (dang xay)) hoi. lieu va cam truc va han tai cuu tre*.