Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
chieu sach » chinh sach, chiet tach, chieu sang
dung thong » dung thuong, dung trong, dong thong
quan trien » quan tren, quang thien, quan tri
hieu sach » hieu cach, dien sach, hieu cac
doanh cua » doanh luan
trien van » thien van, trien san, trien nhan
cua dung » cua dang, cua dong, qua dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu sach) OR (chieu sach)) - hanh doanh cua dung thong quan trien van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu sach) OR (chieu sach)) - hanh doanh cua dung thong quan trien van".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu sach) OR (chieu sach)) - hanh doanh cua dung thong quan trien van*.