Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
va thanh » gia thanh, va tinh, le thanh
te sach » toc sach
va hanh » van hanh, va danh, ban hanh
hieu ve » hieu va, hieu van
cac suc » cao suc, cac nuoc, cac cuoc
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
ma hoi » mai hoi, xa hoi, ma hoa
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 y nang ma hoi. hieu ve cac suc ((va hanh) or (((va thanh) OR (ban thanh)))) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoi. hieu ve cac suc ((va hanh) OR (((va thanh) OR (ban thanh)))) di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ma hoi. hieu ve cac suc ((va hanh) or (((va thanh) OR (ban thanh)))) di cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. hieu ve cac suc ((va hanh) or (((va thanh) OR (ban thanh)))) di cua tre*.