Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
ban hanh » ban hang
te sach » toc sach
va hanh » van hanh, va danh, dao hanh
cua tre » cua te, cuu tre, cua triet
bao suc » bao luc, cao suc, bao thuc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
ve bao » te bao, va bao
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 bao suc ((((va hanh) OR (ban hanh))) or (va 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 bao suc ((((va hanh) OR (ban hanh))) OR (va 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 bao suc ((((va hanh) OR (ban hanh))) or (va thanh)) di cua tre*".