Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, te sach, tu cach
lai cua » dai cua, hai cua, lai chau
xuc van » duc van, luc van, xuc ban
cac xuc » cam xuc, cac nuoc, chat xuc
van cac » van hac, van cau, van bac
cua tre » cua te, cuu tre, cua triet
ty nang » ky nang, ty xang, ty hang
su sach » so sach, vu sach
ma hoi » mai hoi, ma hoa, me hoi

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 (su sach)) ty nang ((ma hoi) or (xa hoi)). hieu van cac xuc van hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty nang ((ma hoi) OR (xa hoi)). hieu van cac xuc van hanh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ty nang ((ma hoi) or (xa hoi)). hieu van cac xuc van hanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ty nang ((ma hoi) or (xa hoi)). hieu van cac xuc van hanh lai cua tre*.