Perhaps you should try some spelling variations:
va hanh » van hanh, va thanh, va danh
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach ty, sach kem
cua tre » cua te, cuu tre, cua triet
dang ma » dang mau, dang mam, dang mat
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
ve cam » ve cac, va cam, ve cai

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

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