Perhaps you should try some spelling variations:
te sach » toc sach
cua tre » cua triet, dua tren, cua thep
va hanh » van hanh, va thanh, va danh
sach ky » sac ky, sach y, sach ty
cuu tre » cau tren, cau treo
hieu va » lieu va, hieu qua
dang ma » dang mau, dang mam, dang mat
ky dang » ky nang, ky danh
va cam » va cham, va cac, va cao
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu
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: te sach ky dang ma hoi. hieu va cam xuc va hanh vi ((cua te) or (((cua tre) OR (cuu tre))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang ma hoi. hieu va cam xuc va hanh vi ((cua te) OR (((cua tre) OR (cuu tre)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang ma hoi. hieu va cam xuc va hanh vi ((cua te) or (((cua tre) OR (cuu tre))))".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang ma hoi. hieu va cam xuc va hanh vi ((cua te) or (((cua tre) OR (cuu tre))))*.