Perhaps you should try some spelling variations:
hanh tranh » hanh trinh, hanh trang, lanh tranh
dung cong » dung trong
cua tinh » cua sinh, va tinh, ha tinh
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
toan cao » toan ban, toan tap
ha cua » hoa cua, hai cua, nha cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ha cua tinh - ((hanh tranh) OR (canh tranh)) cua dung cong san ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ha cua tinh - ((hanh tranh) OR (canh tranh)) cua dung cong san ((toan cao) OR (van ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ha cua tinh - ((hanh tranh) OR (canh tranh)) cua dung cong san ((toan cao) or (van ban))*".