Perhaps you should try some spelling variations:
cau tren » dau tren, ca tren, cau treo
te sach » toc sach
sach ky » sac ky, sach y, sach ty
va dinh » van dinh, va kinh, va tinh
dinh vi » dinh ve, dinh viet, dinh tri
cu tren » tu tren, dua tren
va nam » van nam, va nay
xua va » xuat va, vua va, sua va
x hoi » xa hoi, o hoi, x ho

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 nang x hoi. lieu ((va nam) OR (ha nam)) xua va dinh vi ((cau tren) OR (cu tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. lieu ((va nam) or (ha nam)) xua va dinh vi ((cau tren) OR (cu tren))~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. lieu ((va nam) or (ha nam)) xua va dinh vi ((cau tren) OR (cu tren))*.