Perhaps you should try some spelling variations:
nang lai » nang tai, mang lai, nang cai
cham duc » cham soc, pham duy, phan duc
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
lai roi » lai hoi, loi roi
hieu vu » hieu va, hieu ve, hieu su
va tinh » may tinh
tinh vi » trinh vi, tinh voi, tinh va
cua tre » cua te, cuu tre, cua triet
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 ky nang lai roi. hieu vu ((cham duc) or (pham duc)) va tinh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang lai roi. hieu vu ((cham duc) OR (pham duc)) va tinh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang lai roi. hieu vu ((cham duc) or (pham duc)) va tinh vi cua tre*.