Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
chieu sach » chinh sach, chiet tach, chieu sang
phuong dan » phuong danh, phuong doan, huong dan
doanh cua » doanh luan
manh cua » ban cua
dan phan » doan phan, dan chan, van phan
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (trieu tinh)) - lanh ((manh cua) OR (doanh cua)) dung phuong dan phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (trieu tinh)) - lanh ((manh cua) OR (doanh cua)) dung phuong dan phan lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (trieu tinh)) - lanh ((manh cua) OR (doanh cua)) dung phuong dan phan lap".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (trieu tinh)) - lanh ((manh cua) OR (doanh cua)) dung phuong dan phan lap*.