Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
van hanh » van thanh, ban hanh, van anh
sach ty » sach y, sach tu, sach thu
lai cua » dai cua, hai cua, lai chau
xuc van » duc van, luc van, xuc ban
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, te sach
mai hoi » mai khoi, dai hoi, lai hoi
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
ma hoi » ma hoa, me hoi, va 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 ty nang ((((ma hoi) OR (mai hoi))) or (xa hoi)). hieu ve cac xuc van hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ((((ma hoi) OR (mai hoi))) OR (xa hoi)). hieu ve cac xuc van hanh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang ((((ma hoi) OR (mai hoi))) or (xa hoi)). hieu ve cac xuc van hanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ((((ma hoi) OR (mai hoi))) or (xa hoi)). hieu ve cac xuc van hanh lai cua tre*.