Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
duong manh » duong van
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
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: doi chieu sang - ((hanh tranh) or (hanh trang)) cua nhung duong manh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - ((hanh tranh) OR (hanh trang)) cua nhung duong manh ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((hanh tranh) or (hanh trang)) cua nhung duong manh ((toan cau) or (toan ban))*.