Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, hanh trinh, minh trang
cua nhung » va nhung
cua sinh » hoa sinh, va sinh
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
ho cua » hoc cua, hoi cua, hoa cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho cua sinh - ((hanh trang) OR (canh tranh)) cua nhung cong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho cua sinh - ((hanh trang) OR (canh tranh)) cua nhung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho cua sinh - ((hanh trang) OR (canh tranh)) cua nhung cong dan toan cao*.