Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
thien van » thi van
dang xay » dang van, van xay
trung va » truong va, trang va, trung ha
cuu tre » cua tre, cau tren, cau treo
van cuu » van cau, van chu, van cu
truc va » thuc va, thuc vat
sac ky » cac ky, sai ky
van ba » van ban, van bao, van bac
te sac » te sach, te cac, te san

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky ((nang x) or (dang xay)) hoi. thien van ba ((truc va) OR (trung va)) doanh van cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((nang x) OR (dang xay)) hoi. thien van ba ((truc va) OR (trung va)) doanh van cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky ((nang x) or (dang xay)) hoi. thien van ba ((truc va) OR (trung va)) doanh van cuu tre*".