Perhaps you should try some spelling variations:
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
xa hanh » xa thanh, xa khanh, va hanh
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
ma hoi » mai hoi, xa hoi, ma hoa
va nam » ha nam, va nay

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 ty nang ma hoi. hieu ((va nam) OR (van nam)) tuc xa hanh vi ((cuu tre) OR (cua tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang ma hoi. hieu ((va nam) or (van nam)) tuc xa hanh vi ((cuu tre) OR (cua tre))~".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ma hoi. hieu ((va nam) or (van nam)) tuc xa hanh vi ((cuu tre) OR (cua tre))*.