Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
ma hoi » xa hoi, ma hoa, me hoi
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: ((tu sach) OR (thuat lanh)) ky nang ((ma hoi) OR (mai hoi)). hieu ve cac luc va hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thuat lanh)) ky nang ((ma hoi) OR (mai hoi)). hieu ve cac luc va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thuat lanh)) ky nang ((ma hoi) OR (mai hoi)). hieu ve cac luc va hanh vai cua tre*.