Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
ve nhung » va nhung, tu nhung
tung ve » dung ve, tung le, tung va
tan bao » toan bao, tai bao, tat bao
van bao » van ban, van dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((dieu hanh) or (chieu sach)) - thanh tung ve nhung cong ((tan bao) OR (van bao)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((dieu hanh) OR (chieu sach)) - thanh tung ve nhung cong ((tan bao) OR (van bao)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((dieu hanh) or (chieu sach)) - thanh tung ve nhung cong ((tan bao) OR (van bao)) cao".
• Adding a wildcard symbol may retrieve word variants: ho ((dieu hanh) or (chieu sach)) - thanh tung ve nhung cong ((tan bao) OR (van bao)) cao*.