Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
nam thuc » nam thuoc, am thuc, nam thu
va thanh » gia thanh, ban thanh, va tinh
ve triet » va trien, su triet
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
thuc va » thuc vat, thuc dan, thuc day
va nam » van nam, ha nam, va nay
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: ((tu sach) OR (su sach)) ky nang x hoi. lieu va nam thuc va thanh vai ((va thiet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang x hoi. lieu va nam thuc va thanh vai ((va thiet) OR (ve triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky nang x hoi. lieu va nam thuc va thanh vai ((va thiet) or (ve triet))*".