Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhiet nang » nhiet dong, viet nang, nhieu tang
chung cong » nhung cong, chong cong, phung cong
tranh cua » doanh cua
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
manh cua » doanh cua, ban cua
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 (nhiet nang)) - canh ((tranh cua) OR (manh cua)) chung cong hach toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (nhiet nang)) - canh ((tranh cua) OR (manh cua)) chung cong hach toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (nhiet nang)) - canh ((tranh cua) OR (manh cua)) chung cong hach toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (nhiet nang)) - canh ((tranh cua) OR (manh cua)) chung cong hach toan ban*.