Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » thong cong, hang cong, nhung don
tranh cua » doanh cua, manh cua
dung cong » dung trong
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
ho chau » ha chau, o chau, khoa chau
ho chu » hoi chu, cho chu, ho chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chau) OR (ho chu)) tinh - hanh tranh cua ((nhung cong) or (dung cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chau) OR (ho chu)) tinh - hanh tranh cua ((nhung cong) OR (dung cong)) dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chau) OR (ho chu)) tinh - hanh tranh cua ((nhung cong) or (dung cong)) dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chau) OR (ho chu)) tinh - hanh tranh cua ((nhung cong) or (dung cong)) dan toan cao*.