Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
sach thu » sach thue, sach thieu, sach tham
danh vai » danh sai, danh va, dang van
hieu van » hieu va, thien van, lieu va
van lam » van nam
lam xuc » cam xuc, lam duoc
sach ty » sach y, sach tu, xach tay
lang ha » long ha
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va
ha hoi » hoa hoi, ha noi, xa hoi

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 ty) or (sach thu)) lang ha hoi. hieu van lam xuc va ((danh vai) OR (doanh van)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach thu)) lang ha hoi. hieu van lam xuc va ((danh vai) OR (doanh van)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) or (sach thu)) lang ha hoi. hieu van lam xuc va ((danh vai) OR (doanh van)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach thu)) lang ha hoi. hieu van lam xuc va ((danh vai) OR (doanh van)) cuu tre*.