Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » manh cua
doanh cua » doanh luan
trung cap » truong cao, trung tam
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

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