Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tu sach » thu sach, su sach, te sach
co sach » bo sach, cuon sach, hoc sach
nang xa » nang x, lang xa, nang ma
va cham » va tham
va chat » van chat, va phat, cao chat
va hanh » van hanh, va thanh, va danh
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua

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) OR (co sach)) ky nang xa hoi. hieu ((va cham) OR (va chat)) tuc va hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (co sach)) ky nang xa hoi. hieu ((va cham) OR (va chat)) tuc va hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (co sach)) ky nang xa hoi. hieu ((va cham) OR (va chat)) tuc va hanh vi cua triet*.