Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
thanh vi » hanh vi, thanh va, thanh ve
su sach » so sach, vu sach
va cham » va chat, va tham
nang xa » nang x, lang xa, nang ma
ve chat » va chat, van chat
y nang » ky nang, ly nang, v nang
tu gia » tu giao, tu giac, tu giay

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 y nang xa hoi. hieu ((va cham) or (ve chat)) tu gia thanh vi ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((va cham) OR (ve chat)) tu gia thanh vi ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((va cham) or (ve chat)) tu gia thanh vi ((cua triet) or (va triet))*.