Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
van hanh » van thanh, ban hanh, van anh
va thanh » gia thanh, va tinh, le thanh
hieu van » hieu va, thien van, lieu va
van tham » van thanh, van tuan, van chat
tham soc » cham soc, tham nuoc, thai son
cua tre » cua te, cuu tre, cua triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va cua » va chua, via cua, ca cua
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cac ky lang xa hoi. hieu van tham soc ((van hanh) or (((va thanh) OR (ban thanh)))) va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky lang xa hoi. hieu van tham soc ((van hanh) OR (((va thanh) OR (ban thanh)))) va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cac ky lang xa hoi. hieu van tham soc ((van hanh) or (((va thanh) OR (ban thanh)))) va cua tre".
• Adding a wildcard symbol may retrieve word variants: te cac ky lang xa hoi. hieu van tham soc ((van hanh) or (((va thanh) OR (ban thanh)))) va cua tre*.