Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
tang thanh » trung thanh, hoang thanh, quang thanh
dang thanh » dong thanh, dang hanh, hoang thanh
che chinh » te chinh
lang cong » dang cong, bang cong, hang cong
trinh va » trinh van, trinh vat, trinh ve
va lang » va nang, hoa lang

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: che chinh sach - hanh trinh va lang cong ((tang thanh) OR (dang thanh)) cau~.
• Adding a wildcard symbol may retrieve word variants: che chinh sach - hanh trinh va lang cong ((tang thanh) or (dang thanh)) cau*.