Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh chua » tranh cua, trinh chuan, tranh chap
chua bang » chu bang, chua nang, chua xang
bang cong » dang cong, bang song, hang cong
cong manh » cong danh, duong manh, cong thanh
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: ho ((chieu sang) or (trieu tinh)) - hanh tranh chua bang cong manh ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (trieu tinh)) - hanh tranh chua bang cong manh ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (trieu tinh)) - hanh tranh chua bang cong manh ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (trieu tinh)) - hanh tranh chua bang cong manh ((toan cau) OR (toan ban))*.