Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
doi chieu » doc hieu, doi chi, mot chieu
song khan » cong khan, song nhan, song than
khan than » phan than, khoan thanh, khanh thanh
ho chieu » theo chieu, hoc thieu, mot chieu
than ban » thanh ban, toan ban, than man
ki nang » ky nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (ho chieu)) sang - ((hanh trang) or (hanh chinh)) ki nang song khan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sang - ((hanh trang) OR (hanh chinh)) ki nang song khan than ban.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sang - ((hanh trang) or (hanh chinh)) ki nang song khan than ban*.