Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
nam xuc » cam xuc, nam xua, nam thuc
nam qua » nam quan, nam cua, nam mua
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
su cac » tu cac, su cao, su can
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang ((x hoi) OR (xa hoi)). hieu van ((nam xuc) OR (nam qua)) va thanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky nang ((x hoi) OR (xa hoi)). hieu van ((nam xuc) OR (nam qua)) va thanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: su cac ky nang ((x hoi) OR (xa hoi)). hieu van ((nam xuc) OR (nam qua)) va thanh vai cua tre*.