Perhaps you should try some spelling variations:
phuong doan » phuong loan, phuong hoang, huong dan
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
phuong dan » phuong danh, huong dan, phuong lan
hanh hang » thanh hang, hang hang, hanh han
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (nhieu tang)) - hanh hang va nhung ((phuong dan) OR (phuong doan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (nhieu tang)) - hanh hang va nhung ((phuong dan) OR (phuong doan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (nhieu tang)) - hanh hang va nhung ((phuong dan) OR (phuong doan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (nhieu tang)) - hanh hang va nhung ((phuong dan) OR (phuong doan)) toan ban*.