Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
banh tran » banh trang, ban tran, canh tranh
dung cong » dung trong
tran van » luan van
van dung » van dong, xay dung, tin dung
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
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: ho ((hieu manh) OR (chieu sach)) - banh tran van dung cong dan phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) OR (chieu sach)) - banh tran van dung cong dan phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) OR (chieu sach)) - banh tran van dung cong dan phan cau*.