Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cua thuong » cua truong, cua phuong, ca thuong
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc dieu
hanh tang » hanh trang, anh tang, hanh mang
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (hoc hien)) tinh - ((hanh tang) or (hanh trinh)) cua thuong cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) tinh - ((hanh tang) OR (hanh trinh)) cua thuong cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc hien)) tinh - ((hanh tang) or (hanh trinh)) cua thuong cong dan van ban*.