Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua
manh cua » doanh cua, ban cua
cong san » cong tac
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh ((tranh cua) OR (manh cua)) thong cong san ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh ((tranh cua) OR (manh cua)) thong cong san ((than cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh ((tranh cua) OR (manh cua)) thong cong san ((than cau) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh ((tranh cua) OR (manh cua)) thong cong san ((than cau) or (phan cau))*.