Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cap dung » ap dung, cao dung, chan dung
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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 - ((thanh tung) OR (thanh cong)) cap dung cong dan chan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((thanh tung) OR (thanh cong)) cap dung cong dan chan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((thanh tung) OR (thanh cong)) cap dung cong dan chan cau*.