Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
su sach » so sach, vu sach
mai hoi » mai khoi, dai hoi, lai hoi
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
ty nang » ky nang, ty xang, ty hang
ma hoi » xa hoi, ma hoa, me hoi
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang ((ma hoi) OR (mai hoi)). lieu va cam ((xuc va) or (tuc va)) thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang ((ma hoi) OR (mai hoi)). lieu va cam ((xuc va) OR (tuc va)) thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang ((ma hoi) OR (mai hoi)). lieu va cam ((xuc va) or (tuc va)) thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ((ma hoi) OR (mai hoi)). lieu va cam ((xuc va) or (tuc va)) thanh vi cua tre*.