Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu xanh » chieu sach, chieu sang, chieu tinh
dung duong » dung dong, dong duong, dung dung
duong manh » duong van
hieu manh » hieu nganh, dieu hanh, hien hanh
tranh cua » doanh cua, manh cua
cua dung » cua dang, cua dong, qua dung
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

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