Perhaps you should try some spelling variations:
quang nhung » quang hung, quan nhung, quang phuong
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hanh tinh » nhanh tinh, thanh tinh, canh tinh
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
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: hoc ((chieu sach) OR (chieu sang)) - ((hanh tinh) or (hanh trinh)) quang nhung cong danh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chieu sang)) - ((hanh tinh) OR (hanh trinh)) quang nhung cong danh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) OR (chieu sang)) - ((hanh tinh) or (hanh trinh)) quang nhung cong danh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) OR (chieu sang)) - ((hanh tinh) or (hanh trinh)) quang nhung cong danh toan ban*.