Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cuon sach » duong sach, cuoc cach, co sach
nham thuc » nhan thuc, nam thuc, nham thu
va thanh » gia thanh, ban thanh, va tinh
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
ve nham » ve nha, ve cham
tu sach » thu sach, su sach, te sach
bo sach » co sach, hoc sach
ca viet » va viet, co viet, hoa viet
vai ca » vai cac, vai cua, bai ca
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 (((bo sach) or (cuon sach)))) ky nang x hoi. hieu ve nham thuc va thanh vai ca viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (((bo sach) OR (cuon sach)))) ky nang x hoi. hieu ve nham thuc va thanh vai ca viet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (((bo sach) or (cuon sach)))) ky nang x hoi. hieu ve nham thuc va thanh vai ca viet*.