Perhaps you should try some spelling variations:
lang van » tang van, hoang van, giang van
dang van » hoang van, hang va
hieu van » hieu va, thien van, hieu ve
chua tre » chua tri, cua tre, chua trieu
te sach » toc sach
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
va chua » vua chua, ca chua, va chu
luc va » duc va, tuc va, loc va

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 y ((lang van) OR (dang van)) hoe. ((hieu van) or (lieu va)) nang luc va danh va chua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((lang van) OR (dang van)) hoe. ((hieu van) OR (lieu va)) nang luc va danh va chua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((lang van) OR (dang van)) hoe. ((hieu van) or (lieu va)) nang luc va danh va chua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y ((lang van) OR (dang van)) hoe. ((hieu van) or (lieu va)) nang luc va danh va chua tre*.