Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
va danh » va dinh, va dan, dia danh
dai cuu » dai cua, dai huu
va hanh » va thanh, ban hanh, dao hanh
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
cuu tre » cua tre, cau tren, cau treo
y xang » ty xang
xang x » nang x
x hoi » xa hoi, o hoi, x ho

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 xang x hoi. hieu va cac xuc ((((va hanh) OR (va danh))) or (van hanh)) dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y xang x hoi. hieu va cac xuc ((((va hanh) OR (va danh))) OR (van hanh)) dai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y xang x hoi. hieu va cac xuc ((((va hanh) OR (va danh))) or (van hanh)) dai cuu tre*".