Perhaps you should try some spelling variations:
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
chua tre » chua tri, cua tre, chua trieu
te sach » toc sach
sach ky » sac ky, sach y, sach ty
sang ma » tang ma, sang tao, mang may
nang ma » tang ma, nang cao, mang may
va hanh » van hanh, va thanh, va danh
vi chua » va chua, vi khuan, chi chua
xuc va » duc va, tuc va, luc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((sang ma) OR (nang ma)) hoa. ((hieu van) OR (thien van)) cam xuc va hanh vi chua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((sang ma) OR (nang ma)) hoa. ((hieu van) or (thien van)) cam xuc va hanh vi chua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((sang ma) OR (nang ma)) hoa. ((hieu van) or (thien van)) cam xuc va hanh vi chua tre*.