Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
truong ca » truong cao, truong va, trong ca
cong than » cong thanh, cong thang, cong tan
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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 ((dung cua) or (truong ca)) nhung cong than ((phan cau) OR (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((dung cua) OR (truong ca)) nhung cong than ((phan cau) OR (phan cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((dung cua) or (truong ca)) nhung cong than ((phan cau) OR (phan cac))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((dung cua) or (truong ca)) nhung cong than ((phan cau) OR (phan cac))*.