Perhaps you should try some spelling variations:
cham thuc » nham thuc, pham thuc, tham thuc
ban thanh » ban hanh, ban hang
thanh loi » thanh hoa, thanh hai, thanh lap
vu khach » vu khanh, vu khac, vay khach
thu sach » tu sach, thuat sach, thuoc sach
thuc ban » thuoc ban, thuc dan, thu ban
su triet » su viet, su tien, ve triet
hieu va » lieu va, hieu qua
va cham » va chat, va tham
loi su » loai su, loi tu, lai su
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: ((vu khach) or (thu sach)) ky nang x hoi. hieu va cham thuc ban thanh loi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khach) OR (thu sach)) ky nang x hoi. hieu va cham thuc ban thanh loi su triet.
• Adding a wildcard symbol may retrieve word variants: ((vu khach) or (thu sach)) ky nang x hoi. hieu va cham thuc ban thanh loi su triet*.