Perhaps you should try some spelling variations:
loai tren » la tren, thai tren
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
cau tren » cu tren, dau tren, cau treo
sach ky » sac ky, sach y, sach ty
ky dinh » ky sinh, ky danh, ky kinh
dinh xa » dinh ba, dinh va, dinh xu
hieu va » lieu va, hieu qua
va cham » va chat, va tham
xuc van » duc van, luc van, vuc van
ca tren » cu tren, la tren, co tren

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: thu sach ky dinh xa hoi. hieu va cham xuc van hanh vi ((((cau tren) OR (ca tren))) OR (loai tren))~.
• Adding a wildcard symbol may retrieve word variants: thu sach ky dinh xa hoi. hieu va cham xuc van hanh vi ((((cau tren) or (ca tren))) or (loai tren))*.