Perhaps you should try some spelling variations:
thong cuong » thong chuong, thong cong, thong cung
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
cong quan » cuong quan, cong quang, hong quan
tong quan » thong quan, tong luan, luong quan
cuong tap » luong tap, cong tac, luong tai
tap doan » tap quan
doan ban » doanh ban, toan ban, doan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((chieu sach) OR (chieu sang)) - thanh ((cong quan) or (tong quan)) thong cuong tap doan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((chieu sach) OR (chieu sang)) - thanh ((cong quan) OR (tong quan)) thong cuong tap doan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((chieu sach) OR (chieu sang)) - thanh ((cong quan) or (tong quan)) thong cuong tap doan ban".
• Adding a wildcard symbol may retrieve word variants: toc ((chieu sach) OR (chieu sang)) - thanh ((cong quan) or (tong quan)) thong cuong tap doan ban*.