Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hieu quan » hieu qua, lieu quan, thien quan
dang xay » dang van, van xay
quan cam » quan cau, quan am, quan nam
cau tren » cu tren, dau tren, cau treo
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
va hanh » van hanh, va thanh, va danh
ca tren » cu tren, la tren, co tren
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: thuoc sach ky dang xay hoi. hieu quan cam xuc va hanh vi ((cau tren) or (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky dang xay hoi. hieu quan cam xuc va hanh vi ((cau tren) OR (ca tren)).
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky dang xay hoi. hieu quan cam xuc va hanh vi ((cau tren) or (ca tren))*.