Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh chat » tinh chat, trinh luat, trinh han
doi trieu » doi chieu, doi trinh, hoi tieu
chat cong » chat chong, chat long, chat song
cong cong » cong dong, trong cong, dung cong
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
dong » 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 trieu) or (dong trieu)) tinh - hanh trinh chat cong cong dan ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi trieu) OR (dong trieu)) tinh - hanh trinh chat cong cong dan ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi trieu) or (dong trieu)) tinh - hanh trinh chat cong cong dan ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ((doi trieu) or (dong trieu)) tinh - hanh trinh chat cong cong dan ((toan cau) OR (toan tap))*.