Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
hieu van » hieu va, thien van, lieu va
danh sai » dung sai, danh bat, danh dau
lam xuc » cam xuc, lam duoc
van lam » van nam
te sach » toc sach
xu lang » cu lang, xu dang, xu quang
tu lang » cu lang, tu lanh, tu quang
cua tre » cua te, cuu tre, cua triet
ha hoi » hoa hoi, ha noi, xa hoi
xuc va » duc va, tuc va, luc 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 ((tu lang) OR (xu lang)) ha hoi. hieu van lam xuc va ((doanh van) or (danh sai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu lang) OR (xu lang)) ha hoi. hieu van lam xuc va ((doanh van) OR (danh sai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tu lang) OR (xu lang)) ha hoi. hieu van lam xuc va ((doanh van) or (danh sai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((tu lang) OR (xu lang)) ha hoi. hieu van lam xuc va ((doanh van) or (danh sai)) cua tre*.