Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
chu tinh » chau tinh, chua tinh, cuu tinh
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
hoi chu » hoi chuc

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: hoi chu tinh - hanh trinh va nhung cong dan ((((toan cau) OR (doanh tai))) OR (toan cao))~.
• Adding a wildcard symbol may retrieve word variants: hoi chu tinh - hanh trinh va nhung cong dan ((((toan cau) or (doanh tai))) or (toan cao))*.