Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hanh, ban hang
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
vu sach » vu bach, su sach, vu khach
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: vu sach y nang ma hoi. hieu ((van cam) OR (van nam)) thu ban thanh van ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang ma hoi. hieu ((van cam) OR (van nam)) thu ban thanh van ((cua triet) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang ma hoi. hieu ((van cam) OR (van nam)) thu ban thanh van ((cua triet) or (cua viet))".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang ma hoi. hieu ((van cam) OR (van nam)) thu ban thanh van ((cua triet) or (cua viet))*.