Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
cong cong » cong dong, trong cong, dung cong
cong doan » cong dan, cong hoan, dong doanh
doan van » doan va, hoang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu nganh) or (chiet tach)) - hanh trinh cua cong cong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu nganh) OR (chiet tach)) - hanh trinh cua cong cong doan van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu nganh) or (chiet tach)) - hanh trinh cua cong cong doan van ban*.