Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
van hanh » van thanh, ban hanh, van anh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
day cua » dai cua
cua tre » cua te, cuu tre, cua triet
tu cao » cu cao, tu cac, vu cao
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cao ky lang xa hoi. hieu va cam luc ((va thanh) or (van hanh)) day cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cao ky lang xa hoi. hieu va cam luc ((va thanh) OR (van hanh)) day cua tre.
• Adding a wildcard symbol may retrieve word variants: tu cao ky lang xa hoi. hieu va cam luc ((va thanh) or (van hanh)) day cua tre*.