Perhaps you should try some spelling variations:
nang tai » hang tai, tang tai, sang tai
vu sach » vu bach, vu khach
va dauh » va danh, va doanh
hieu ve » hieu va, hieu van
tai roi » lai roi, tai hoi, tai loi
su sach » so sach
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
va dau » va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (su sach)) ky nang tai roi. hieu ve cam xuc ((va dauh) or (va dau)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) ky nang tai roi. hieu ve cam xuc ((va dauh) OR (va dau)) dai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) ky nang tai roi. hieu ve cam xuc ((va dauh) or (va dau)) dai cua tre*".