Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
lang van » dang van, tang van, hoang van
van hoi » van hoa, van hoc, van hoe
thi lan » thi hanh, thi nang, thi lien
vai cua » dai cua, hai cua, lai cua
ky lang » ky nang, ky dang, ky tang
cac toc » cac toi, cac nuoc, cac thoi
vi cua » di cua
vu cac » va cac, tu cac, ve cac
cac tu » cac thu, cach tu, cac du

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

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