Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
chieu sach » chinh sach, chiet tach, chieu sang
thanh than » thanh thanh, thanh thang, thanh toan
canh tran » canh tranh, hanh trang, banh trang
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
than ban » thanh ban, toan ban, than man

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 - canh tran van ((nhung cong) OR (hang cong)) thanh than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - canh tran van ((nhung cong) OR (hang cong)) thanh than ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh tran van ((nhung cong) OR (hang cong)) thanh than ban*.