Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
su sach » so sach, vu sach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cac tuc » cac toc, cac tu, cac tac
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua

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

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