Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
chong cong » cong cong, thong cong, cuong cong
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
truong va » truong dai, truong cao, truong dao
truong a » truong ca, truong sa, truong ba
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)) - manh ((truong a) OR (truong va)) chong cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (nhieu tang)) - manh ((truong a) OR (truong va)) chong cong thanh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (nhieu tang)) - manh ((truong a) OR (truong va)) chong cong thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (nhieu tang)) - manh ((truong a) OR (truong va)) chong cong thanh toan ban*.