Perhaps you should try some spelling variations:
hanh than » hanh han, hanh nhan, hanh phan
than cua » nhan cua, thai cua, ban cua
ky sang » ky nang, ky tang, duy sang
ky dang » ky nang, ky danh
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
tu cai » tu cac, tu can, tu bai
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa

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

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