Perhaps you should try some spelling variations:
te sach » toc sach
tinh va » tich va, trinh van, trinh vat
va tinh » may tinh
ve cham » va cham, ve chat, vu cham
nang ma » tang ma, sang ma, nang cao
so sach » so sanh, bo sach, co sach
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (so sach)) ky nang ma hoa. hieu ((ve cham) or (va cam)) xuc va tinh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (so sach)) ky nang ma hoa. hieu ((ve cham) OR (va cam)) xuc va tinh va cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (so sach)) ky nang ma hoa. hieu ((ve cham) or (va cam)) xuc va tinh va cua tre*.