Perhaps you should try some spelling variations:
hieu nganh » hiem ngan, hieu manh, nghiep nganh
vien nganh » vien thanh
tranh luan » trinh luan, trinh luat, doanh luan
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
cong tinh » cong trinh, cong vinh, long tinh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu nganh) or (vien nganh)) - canh tranh luan dang cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu nganh) OR (vien nganh)) - canh tranh luan dang cong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu nganh) or (vien nganh)) - canh tranh luan dang cong tinh toan ban*.