Perhaps you should try some spelling variations:
ban danh » ban doanh, ban dan, van danh
ban hanh » ban hang
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang co » nang cao, nang doc, nang noi
cam cuc » cam xuc, cham cuu, pham cuc
su viet » so viet
co hoi » co hoc, co loi
va cam » va cham, va cac, va cao
vi su » va su, ve su, ki su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang co hoi. lieu va cam cuc ((ban danh) OR (ban hanh)) vi su viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang co hoi. lieu va cam cuc ((ban danh) OR (ban hanh)) vi su viet".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang co hoi. lieu va cam cuc ((ban danh) OR (ban hanh)) vi su viet*.