Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thiet tach » chiet tach, thuat tach
thien hach » thien thanh, hien hanh
cua phuong » cuu phuong, cuc phuong, luan phuong
tranh cua » doanh cua, manh cua
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

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 tach) or (thien hach)) - canh tranh cua phuong cong dan than man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thiet tach) OR (thien hach)) - canh tranh cua phuong cong dan than man.
• Adding a wildcard symbol may retrieve word variants: hoc ((thiet tach) or (thien hach)) - canh tranh cua phuong cong dan than man*.