Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
vai cua » dai cua, hai cua, lai cua
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
van cac » van hac, van cau, van bac
cua tre » cua te, cuu tre, cua triet
hoa hoi » khoa hoi, hoa hoc, hoa doi
ky dang » ky nang, ky danh
ky lang » ky nang, ky tang, tay lang
su cac » su cao, su can, eu cac

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) or (tu cac)) ((ky lang) or (ky dang)) hoa hoi. hieu van cac xuc van thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su cac) OR (tu cac)) ((ky lang) OR (ky dang)) hoa hoi. hieu van cac xuc van thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su cac) or (tu cac)) ((ky lang) or (ky dang)) hoa hoi. hieu van cac xuc van thanh vai cua tre*.