Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hien tinh » khien tinh, thien tinh, dien tinh
bien tinh » bi tinh, diep tinh, ban tinh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
yen tinh » tuyen tinh
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan 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 ((hien tinh) or (((bien tinh) OR (yen tinh)))) - canh tranh cua nhung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien tinh) OR (((bien tinh) OR (yen tinh)))) - canh tranh cua nhung cong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien tinh) or (((bien tinh) OR (yen tinh)))) - canh tranh cua nhung cong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien tinh) or (((bien tinh) OR (yen tinh)))) - canh tranh cua nhung cong dan toan tap*.