Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, mot chieu
nang cong » nang song, dang cong, bang cong
ho chieu » theo chieu, hoc thieu, mot chieu
van nang » van quang, van dong, van dung
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (doi chieu)) sang - ((hanh tranh) or (hanh chinh)) van nang cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sang - ((hanh tranh) OR (hanh chinh)) van nang cong dan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sang - ((hanh tranh) or (hanh chinh)) van nang cong dan van ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sang - ((hanh tranh) or (hanh chinh)) van nang cong dan van ban*.