Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
so sach » so sanh, bo sach, co sach
sach yu » sach y, sach tu, sach uu
yu hang » yu zhang, yu pang, yu wang
va hanh » van hanh, va thanh, va danh
hang x » nang x, hoang xa, chang xu
ve cac » vien cac
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach yu hang x hoi. hieu ((ve cac) or (va cac)) duc va hanh vi ((cua te) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach yu hang x hoi. hieu ((ve cac) OR (va cac)) duc va hanh vi ((cua te) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: so sach yu hang x hoi. hieu ((ve cac) or (va cac)) duc va hanh vi ((cua te) or (cua triet))*.