Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan chat » van chat, dan chan, ban chat
chat ban » nhat ban, chat ran, cua ban
mang va » mang vua, hang va, dang va
bang va » hang va, ban va, trang va

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 ((mang va) OR (bang va)) dung cong dan chat ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh ((mang va) OR (bang va)) dung cong dan chat ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((mang va) OR (bang va)) dung cong dan chat ban*.