Perhaps you should try some spelling variations:
sach thuat » sach tham, dich thuat, cac thuat
thuat nang » thuat bang, thuat mang, thuat trang
hieu voi » hieu moi, lieu voi, hieu loi
voi pham » vi pham, toi pham, loai pham
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
bai cua » ban cua, dai cua, bai ca
lai cua » dai cua, hai cua, lai chau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach thuat nang xa hoi. hieu voi pham duc va hanh ((bai cua) or (lai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thuat nang xa hoi. hieu voi pham duc va hanh ((bai cua) OR (lai cua)) triet.
• Adding a wildcard symbol may retrieve word variants: tu sach thuat nang xa hoi. hieu voi pham duc va hanh ((bai cua) or (lai cua)) triet*.