Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh tranh » canh tranh, hanh trang, lanh tranh
lieu tinh » trieu tinh, diep tinh, bien tinh
cua nhung » va nhung
doi lieu » duoc lieu, doi chieu, du lieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - ((hanh tranh) OR (hanh trinh)) cua nhung ((cong dan) OR (cong san)) phan cau~.
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - ((hanh tranh) or (hanh trinh)) cua nhung ((cong dan) or (cong san)) phan cau*.