Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
dang thanh » dong thanh, dang hanh, hoang thanh
doi chieu » doc hieu, doi chi, ho chieu
quan hang » quan hoang, quan lang, qua hang
quan hanh » quan thanh, quang thanh, quang khanh
cong dang » cong dong, cong dan, cong dung

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 (theo tieu)) xanh - hanh trinh ((quan hang) OR (quan hanh)) cong dang thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo tieu)) xanh - hanh trinh ((quan hang) OR (quan hanh)) cong dang thanh san.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (theo tieu)) xanh - hanh trinh ((quan hang) OR (quan hanh)) cong dang thanh san".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo tieu)) xanh - hanh trinh ((quan hang) OR (quan hanh)) cong dang thanh san*.