Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
doi chieu » doc hieu, doi chi, ho chieu
truong ca » truong va, trong ca, truong dai
thong cac » trong cac, phong cach, thong cua
cong san » cong tac
chon cac » cho cac, hoc cac, chon loc

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