Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
nhung cong » dung cong, thong cong, hang cong
nang hang » nang sang, hang hang, cang thang
cua nhung » va nhung
hang cua » mang cua, hang ca, huong cua
cong san » cong tac
than cao » thai cao, than cap, than sao
toan cao » toan ban, toan tap

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)) - nang hang cua nhung cong san ((than cao) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (nhieu tang)) - nang hang cua nhung cong san ((than cao) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (nhieu tang)) - nang hang cua nhung cong san ((than cao) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (nhieu tang)) - nang hang cua nhung cong san ((than cao) OR (toan cao))*.