Perhaps you should try some spelling variations:
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
qua cac » cua cac
cac luc » cau luc, coc luc, cac nuoc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
y lang » o lang, _ lang, tay lang
luc va » duc va, tuc va, loc va
cua te » cua tu
cua cu » cua chu, cua cau, cua su

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: su sach y lang xa hoi. hieu qua cac luc va danh vi ((cua te) OR (cua cu))~.
• Adding a wildcard symbol may retrieve word variants: su sach y lang xa hoi. hieu qua cac luc va danh vi ((cua te) or (cua cu))*.