Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, dieu hanh, hien hanh
tranh qua » tranh cua, thanh qua, trinh qua
dung cong » dung trong
qua dung » quang dung, su dung, qua song
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((((hieu manh) OR (hieu nganh))) or (chieu sach)) - canh tranh qua dung cong dan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((((hieu manh) OR (hieu nganh))) OR (chieu sach)) - canh tranh qua dung cong dan phan cac*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((((hieu manh) OR (hieu nganh))) or (chieu sach)) - canh tranh qua dung cong dan phan cac*".