Perhaps you should try some spelling variations:
va thanh » ban thanh, va tinh, le thanh
te sach » toc sach
cac suc » cao suc, cac nuoc, cac cuoc
va hanh » van hanh, va danh, ban hanh
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
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 v nang cao hoi. hieu ve cac suc ((va hanh) or (((va thanh) or (gia thanh)))) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang cao hoi. hieu ve cac suc ((va hanh) OR (((va thanh) OR (gia thanh)))) di cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach v nang cao hoi. hieu ve cac suc ((va hanh) or (((va thanh) or (gia thanh)))) di cua tre*.