Perhaps you should try some spelling variations:
hanh trang » thanh trung, hanh trinh, minh trang
hien tinh » khien tinh, thien tinh, bien tinh
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

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