Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
va triet » va thiet, va trien, ve triet
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
luc va » duc va, tuc va, loc va
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. hieu ((ve cam) or (va cham)) luc va hanh va ((va triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ((ve cam) OR (va cham)) luc va hanh va ((va triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ((ve cam) or (va cham)) luc va hanh va ((va triet) or (cua viet))*.