Perhaps you should try some spelling variations:
chat triet » chet triet, phat trien, chat thien
ban hanh » ban hang
hanh van » thanh van, khanh van, hanh va
van chat » cao chat
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
xang co » nang co, lang co, tang co
xuc ban » duc ban, cuc ban, quoc ban
co hoi » co hoc, co loi
ve cam » ve cham, ve cac, ve cai
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 ty xang co hoi. hieu ((ve cam) or (va cam)) xuc ban hanh van chat triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty xang co hoi. hieu ((ve cam) OR (va cam)) xuc ban hanh van chat triet.
• Adding a wildcard symbol may retrieve word variants: vu sach ty xang co hoi. hieu ((ve cam) or (va cam)) xuc ban hanh van chat triet*.