Perhaps you should try some spelling variations:
chat triet » chet triet, phat trien, chat thien
ban thanh » ban hanh, ban hang
thanh de » hanh de, thanh ve, thanh do
va cham » va chat, va tham
de chat » de phat, ve chat, du chat
xuc ban » duc ban, cuc ban, quoc ban
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang ro » nang co, nang ho, nang ra
ve cac » va cac, vien cac
ro hoi » co hoi, o hoi, mo hoi
va cam » va cac, va cao, va cai

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 ro hoi. hieu ((ve cac) or (((va cam) OR (va cham)))) xuc ban thanh de chat triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ro hoi. hieu ((ve cac) OR (((va cam) OR (va cham)))) xuc ban thanh de chat triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ro hoi. hieu ((ve cac) or (((va cam) OR (va cham)))) xuc ban thanh de chat triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ro hoi. hieu ((ve cac) or (((va cam) OR (va cham)))) xuc ban thanh de chat triet*.