Perhaps you should try some spelling variations:
vat doanh » van doanh, vay doanh, luat doanh
thu sach » tu sach, thuat sach, thuoc sach
va doanh » van doanh, vay doanh, va danh
cua viet » ca viet, hoa viet, cua vat
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang co » nang cao, nang doc, nang noi
van cua » vang cua, ban cua, dan cua
co hoi » co hoc, co loi
va am » va lam, va cam

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang co hoi. lieu va am thuc ((vat doanh) OR (va doanh)) van cua viet~".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang co hoi. lieu va am thuc ((vat doanh) OR (va doanh)) van cua viet*.