Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang ro » nang co, nang ho, nang ra
va dinh » van dinh, va kinh, va tinh
dinh di » dinh du, dinh vi, danh di
cua tre » cua te, cuu tre, cua triet
ro hoi » co hoi, o hoi, mo hoi
luc va » duc va, tuc va, loc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ro hoi. hieu ((ke cau) or (ket cau)) luc va dinh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ro hoi. hieu ((ke cau) OR (ket cau)) luc va dinh di cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ro hoi. hieu ((ke cau) or (ket cau)) luc va dinh di cua tre*.