Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh tin » trinh kinh, trinh toan, trinh tu
dung cong » dung trong
cua tinh » va tinh, ha tinh, hoa tinh
cua sinh » hoa sinh, va sinh
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi ((cua tinh) OR (cua sinh)) - hanh trinh tin dung cong dan ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((cua tinh) OR (cua sinh)) - hanh trinh tin dung cong dan ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi ((cua tinh) OR (cua sinh)) - hanh trinh tin dung cong dan ((toan cau) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: hoi ((cua tinh) OR (cua sinh)) - hanh trinh tin dung cong dan ((toan cau) or (toan cao))*.