Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thiet » hoc thieu, hoc thuyet, toc thieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 thiet) OR (hoc hien)) tach - canh tranh cua nhung cong dan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thiet) OR (hoc hien)) tach - canh tranh cua nhung cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) OR (hoc hien)) tach - canh tranh cua nhung cong dan toan ban*.