Perhaps you should try some spelling variations:
van hanh » van thanh, van anh, van ban
phan cua » nhan cua, than cua, phat cua
ban hanh » ban hang
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
cam duc » cam xuc, pham duc, nam duoc
cao duc » dao duc, cao suc, giao duc
su sai » su tai, su hai, su dai
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky tang xa hoi. hieu va ((cam duc) or (cao duc)) ((van hanh) OR (ban hanh)) phan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky tang xa hoi. hieu va ((cam duc) OR (cao duc)) ((van hanh) OR (ban hanh)) phan cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky tang xa hoi. hieu va ((cam duc) or (cao duc)) ((van hanh) OR (ban hanh)) phan cua tre".
• Adding a wildcard symbol may retrieve word variants: su sai ky tang xa hoi. hieu va ((cam duc) or (cao duc)) ((van hanh) OR (ban hanh)) phan cua tre*.