Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thi nang » thi cong, ki nang, thi hanh
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, va tinh, le thanh
cua viet » ca viet, hoa viet, cua vat
sach ky » sac ky, sach y, sach ty
thi van » thi lan, thi hanh
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) or (thi nang)) bac xuc ((va thanh) OR (ban thanh)) lap cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang x hoi. ((thi van) OR (thi nang)) bac xuc ((va thanh) OR (ban thanh)) lap cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang x hoi. ((thi van) or (thi nang)) bac xuc ((va thanh) OR (ban thanh)) lap cua viet".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang x hoi. ((thi van) or (thi nang)) bac xuc ((va thanh) OR (ban thanh)) lap cua viet*.