Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh tranh » canh tranh, hanh trang, lanh tranh
doi khieu » doi chieu, doc hieu, doi hien
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » 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: ((doi khieu) or (doi khi)) sach - ((hanh tranh) or (hanh trinh)) cua dung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi khieu) OR (doi khi)) sach - ((hanh tranh) OR (hanh trinh)) cua dung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((doi khieu) or (doi khi)) sach - ((hanh tranh) or (hanh trinh)) cua dung cong dan toan cau*.