Perhaps you should try some spelling variations:
hieu danh » dieu danh, hieu manh, tieu danh
danh nang » anh nang, ganh nang, danh thang
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach
vu sach » vu bach, vu khach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, van nang
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (vu sach)) v nang xa hoi. hieu danh nang luc va hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) v nang xa hoi. hieu danh nang luc va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) v nang xa hoi. hieu danh nang luc va hanh vai cua tre*.