Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thien quan » trien quang, lien quan, thien van
hanh trung » thanh trung, hanh trang, danh trung
manh trung » manh tung, thanh trung, manh hung
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong san » cong tac
san than » sang than, san thanh, ban than
than tap » toan tap, han tap, phan tap

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

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