Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
lieu tinh » trieu tinh, diep tinh, bien tinh
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban
ho lieu » so lieu, co lieu, ho kieu

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: ho lieu tinh - hanh trinh ((cua dung) OR (cua dang)) cong dan ((toan cao) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh trinh ((cua dung) or (cua dang)) cong dan ((toan cao) or (toan tap))*.