Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
cong ngang » cong nhan, cong quang, cong nong
trinh cua » tinh cua, trinh luat, trinh quan
cua thong » cua thuong, cua khong, cua tong
cong lang » cong vang, cong luong, cong quang
ho chinh » hoc chinh, cho chinh, hoa chinh
chat van » chat va, chat ban, chao van
chat ran » chat ban, chat va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chinh sach - hanh trinh cua thong ((cong ngang) or (cong lang)) ((chat van) OR (chat ran))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chinh sach - hanh trinh cua thong ((cong ngang) OR (cong lang)) ((chat van) OR (chat ran)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chinh sach - hanh trinh cua thong ((cong ngang) or (cong lang)) ((chat van) OR (chat ran))".
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - hanh trinh cua thong ((cong ngang) or (cong lang)) ((chat van) OR (chat ran))*.