Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu van
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc 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 y nang ma hoi. ((hieu ve) OR (hieu va)) cham xuc va hanh tai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ma hoi. ((hieu ve) OR (hieu va)) cham xuc va hanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. ((hieu ve) OR (hieu va)) cham xuc va hanh tai cua tre*.