Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
cua truong » cua trung, xuan truong, cac truong
hanh trinh » hanh chinh
cong ngang » cong nhan, cong quang, cong lang
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) OR (canh tranh)) cua truong cong ngang ((chat van) or (chat ran))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chinh sach - ((hanh trinh) OR (canh tranh)) cua truong cong ngang ((chat van) OR (chat ran)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chinh sach - ((hanh trinh) OR (canh tranh)) cua truong cong ngang ((chat van) or (chat ran))".
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - ((hanh trinh) OR (canh tranh)) cua truong cong ngang ((chat van) or (chat ran))*.