Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
ban hanh » ban hang
hanh lam » thanh lap, hanh kem, hanh va
su triet » su viet, su tien, ve triet
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
nang o » nang co, nang ho, nang ro
ve cam » ve cham, ve cac, va cam
o hoi » co hoi, o hoc, o hai

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 ky nang o hoi. hieu ve cam xuc ban hanh lam ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang o hoi. hieu ve cam xuc ban hanh lam ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang o hoi. hieu ve cam xuc ban hanh lam ((cua triet) or (su triet))*.