Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
lieu quan » lien quan, hieu qua, lieu van
trang cua » tranh cua, tang cua, trung cua
bang cong » dang cong, bang song, hang cong
van thang » van thanh, van khang, van hang
cua bang » chua bang, cua ban, cua dang
van than » van thanh, van tuan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chinh sach) or (lieu quan)) - hanh trang cua bang cong ((van than) OR (van thang)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chinh sach) OR (lieu quan)) - hanh trang cua bang cong ((van than) OR (van thang)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chinh sach) or (lieu quan)) - hanh trang cua bang cong ((van than) OR (van thang)) cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (lieu quan)) - hanh trang cua bang cong ((van than) OR (van thang)) cao*.