Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tran » hanh trang, thanh tran, hanh tram
van quang » van quan, tran quang, van tuan
van hang » van khang, van hoang, van thang
cong san » cong tac
san tran » tan tran, ban tran, dang tran
tran huu » tran duc

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)) - hanh tran ((van hang) or (van quang)) cong san tran huu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - hanh tran ((van hang) OR (van quang)) cong san tran huu.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - hanh tran ((van hang) or (van quang)) cong san tran huu*.