Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
hanh trang » thanh trung, hanh trinh, minh trang
nhung hung » nhung huong, nhung dung, nhung vung
cua nhung » va nhung
hung tinh » hung thinh, nhung tinh, dung tinh
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 sang) or (chiet tach)) - ((hanh trang) OR (canh tranh)) cua nhung hung tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chiet tach)) - ((hanh trang) OR (canh tranh)) cua nhung hung tinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) or (chiet tach)) - ((hanh trang) OR (canh tranh)) cua nhung hung tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chiet tach)) - ((hanh trang) OR (canh tranh)) cua nhung hung tinh toan ban*.