Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, tu cach
nang ma » tang ma, sang ma, nang cao
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, mang xa
te sach » toc sach
ve cac » va cac, vien cac
luc va » duc va, tuc va, loc va
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: ((tu sach) or (te sach)) y ((nang xa) or (nang ma)) hoi. hieu ve cac luc va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) y ((nang xa) OR (nang ma)) hoi. hieu ve cac luc va danh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) y ((nang xa) or (nang ma)) hoi. hieu ve cac luc va danh vi cua tre*.