Perhaps you should try some spelling variations:
te sach » toc sach
thi van » thi lan, thi hanh, thi nang
va danh » va dinh, va dan, va hanh
nam tuc » nam thuc, nam truc, nam tu
van hoe » van hoa, van hoc, van hieu
ky tang » ky nang, ky dang, kho tang
ky lang » ky nang, ky dang, tay lang
tuc va » thuc va, truc va, tuc xa
va huu » vu huu
va cau » van cau, va cac, va dau

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 ((ky lang) or (ky tang)) van hoe. thi van nam tuc va danh ((va huu) or (va cau)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky lang) OR (ky tang)) van hoe. thi van nam tuc va danh ((va huu) OR (va cau)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((ky lang) or (ky tang)) van hoe. thi van nam tuc va danh ((va huu) or (va cau)) tre*.