Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
van hoi » van hoa, van hoc, van hoe
van bac » van ban, van bao, van hac
xuc ban » duc ban, cuc ban, quoc ban
vi cua » vai cua, di cua
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ((ky lang) OR (ky tang)) van hoi. hieu van bac xuc ban thanh ((vi cua) or (le cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ((ky lang) OR (ky tang)) van hoi. hieu van bac xuc ban thanh ((vi cua) OR (le cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ((ky lang) OR (ky tang)) van hoi. hieu van bac xuc ban thanh ((vi cua) or (le cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu cac ((ky lang) OR (ky tang)) van hoi. hieu van bac xuc ban thanh ((vi cua) or (le cua)) tre*.