Perhaps you should try some spelling variations:
chat triet » chet triet, phat trien, chat thien
ban thanh » ban hanh, ban hang
thanh le » thinh le, thanh ve, thanh de
le chat » ly chat, le nhat, le chan
xuc ban » duc ban, cuc ban, quoc ban
ve chat » va chat, van chat
sach tu » sach thu, cach tu, sach ty
vu sach » vu bach, su sach, vu khach
nang ra » nang ma, lang ra, nang va
nang ro » nang co, nang ho, nang rong
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: vu sach tu ((nang ro) or (nang ra)) hoi. hieu ((ve chat) or (va cam)) xuc ban thanh le chat triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach tu ((nang ro) OR (nang ra)) hoi. hieu ((ve chat) OR (va cam)) xuc ban thanh le chat triet.
• Adding a wildcard symbol may retrieve word variants: vu sach tu ((nang ro) or (nang ra)) hoi. hieu ((ve chat) or (va cam)) xuc ban thanh le chat triet*.