Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
tham tuc » tham thuc, nham thuc, pham thuc
thai tuc » thai thuc, thai thuy, thai hoc
dinh dat » dinh ket, dinh van, dinh lam
nang ma » tang ma, sang ma, nang cao
xa dinh » xac dinh, va dinh, ba dinh
dat cua » dai cua, day cua, mat cua
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach thu nang ma hoi. lieu va ((tham tuc) or (thai tuc)) xa dinh dat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thu nang ma hoi. lieu va ((tham tuc) OR (thai tuc)) xa dinh dat cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach thu nang ma hoi. lieu va ((tham tuc) or (thai tuc)) xa dinh dat cua tre*.