Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, va tinh, le thanh
co sach » bo sach, cuon sach, hoc sach
cam duc » cam xuc, cao duc, pham duc
va cam » va cham, va cac, va cao
va cua » va chua, via cua, ca cua
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: ((co sach) or (hoc sinh)) ky nang x hoi. lieu va cam duc ((va thanh) OR (ban thanh)) va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co sach) OR (hoc sinh)) ky nang x hoi. lieu va cam duc ((va thanh) OR (ban thanh)) va cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((co sach) or (hoc sinh)) ky nang x hoi. lieu va cam duc ((va thanh) OR (ban thanh)) va cua triet".
• Adding a wildcard symbol may retrieve word variants: ((co sach) or (hoc sinh)) ky nang x hoi. lieu va cam duc ((va thanh) OR (ban thanh)) va cua triet*.