Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhanh lang » nhanh quang, nhanh thang, nhan dang
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap
toan ban » van ban
lang va » lang van, hang va, lang ha

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)) - nhanh lang va nhung cong dan ((than cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - nhanh lang va nhung cong dan ((than cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - nhanh lang va nhung cong dan ((than cau) or (toan ban))*.