Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van ban
thai cua » than cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, nam duoc
van anh » van thanh, tuan anh, van minh
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 lang xa hoi. hieu va ((cam duc) OR (pham duc)) ((van hanh) or (van anh)) thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky lang xa hoi. hieu va ((cam duc) OR (pham duc)) ((van hanh) OR (van anh)) thai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky lang xa hoi. hieu va ((cam duc) OR (pham duc)) ((van hanh) or (van anh)) thai cua tre*".