Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
trinh quan » trinh luat, trinh han
cuong dung » tuong duong, ung dung, thong dung
dung von » dong von, dung cong, dung va
von toan » van toan, mon toan, von doanh
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: ho ((chieu xanh) OR (chieu sang)) - hanh ((trinh quan) or (tinh quang)) cuong dung von toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - hanh ((trinh quan) OR (tinh quang)) cuong dung von toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sang)) - hanh ((trinh quan) or (tinh quang)) cuong dung von toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sang)) - hanh ((trinh quan) or (tinh quang)) cuong dung von toan cau*.