Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
vuong manh » luong manh, vuong anh, vuong thanh
duong manh » duong van
thi chang » thi hang, chi chang, thi chung
tranh cua » doanh cua, manh cua
cua chung » cua nhung, luan chung, luat chung
chi sang » chi lang, chieu sang, chi chang
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi sang) or (thi chang)) - hanh tranh cua chung ((vuong manh) OR (duong manh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi sang) OR (thi chang)) - hanh tranh cua chung ((vuong manh) OR (duong manh)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi sang) or (thi chang)) - hanh tranh cua chung ((vuong manh) OR (duong manh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chi sang) or (thi chang)) - hanh tranh cua chung ((vuong manh) OR (duong manh)) toan cau*.