Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
van hang » van khang, van hoang, van thang
hieu van » hieu va, thien van, lieu va
van cuu » van cau, van chu, van cu
truc va » thuc va, trung va
te sach » toc sach
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
cuu tre » cua tre, cau tren, cau treo

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 ((nang xa) or (lang xa)) hoi. hieu van hang ((truc va) OR (thuc vat)) doanh van cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang xa) OR (lang xa)) hoi. hieu van hang ((truc va) OR (thuc vat)) doanh van cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((nang xa) or (lang xa)) hoi. hieu van hang ((truc va) OR (thuc vat)) doanh van cuu tre*".