Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, le thanh
cua viet » ca viet, hoa viet, cua vat
sach ky » sac ky, sach y, sach ty
thi van » thi lan, thi hanh, thi nang
van bac » van ban, van bao, van hac
va tinh » may tinh
lap cua » lai cua, tap cua, lam cua
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: toc sach ky nang x hoi. thi van bac xuc ((va thanh) OR (va tinh)) lap cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang x hoi. thi van bac xuc ((va thanh) OR (va tinh)) lap cua viet".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang x hoi. thi van bac xuc ((va thanh) OR (va tinh)) lap cua viet*.