Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh sinh » canh tinh, canh binh, tinh sinh
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
hang dau » hang tai
sinh va » sinh vat, tinh va, dinh van
va hang » van hang, va nang, va lang

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 sinh va hang cong dan ((hang dau) OR (hang va))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - canh sinh va hang cong dan ((hang dau) OR (hang va))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh sinh va hang cong dan ((hang dau) OR (hang va))*.