Perhaps you should try some spelling variations:
chet triet » chuyen triet, thuyet triet
chat triet » phat trien, chat thien, cua triet
ban thanh » ban hanh, ban hang
thanh de » hanh de, thanh ve, thanh do
xuc ban » duc ban, cuc ban, quoc ban
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang mo » nang meo, nang ma, nang co
ve cam » ve cham, ve cac, ve cai
mo hoi » mo phoi, mo hoc, co hoi
va cam » va cham, va cac, va cao

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 mo hoi. hieu ((ve cam) or (va cam)) xuc ban thanh de ((chat triet) or (chet triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang mo hoi. hieu ((ve cam) OR (va cam)) xuc ban thanh de ((chat triet) OR (chet triet)).
• Adding a wildcard symbol may retrieve word variants: su sach ky nang mo hoi. hieu ((ve cam) or (va cam)) xuc ban thanh de ((chat triet) or (chet triet))*.