Perhaps you should try some spelling variations:
cua triet » su triet, va triet
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
van cam » van lam, van cau, van dam
thu ban » thu hang
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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 y nang ma hoi. hieu ((van cam) OR (van nam)) thu ban thanh vi ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ma hoi. hieu ((van cam) OR (van nam)) thu ban thanh vi ((cua triet) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ma hoi. hieu ((van cam) OR (van nam)) thu ban thanh vi ((cua triet) or (cua viet))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoi. hieu ((van cam) OR (van nam)) thu ban thanh vi ((cua triet) or (cua viet))*.