Perhaps you should try some spelling variations:
quang nhung » quang hung, quan nhung, quang phuong
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
manh toan » thanh toan, anh tuan, tinh toan
san toan » van toan, dan toan, xuan toan

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 sach) or (chieu tinh)) - hanh tinh quang nhung cong ((san toan) OR (manh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu tinh)) - hanh tinh quang nhung cong ((san toan) OR (manh toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chieu tinh)) - hanh tinh quang nhung cong ((san toan) OR (manh toan)) cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu tinh)) - hanh tinh quang nhung cong ((san toan) OR (manh toan)) cao*.