Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, minh trang
chieu sang » chieu sach, chieu xanh, nhieu tang
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, nhieu tang, hieu van
cua nhung » va nhung
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan phan
phan cau » phan dau, phan cac, phan tu

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 (hieu lang)) - ((hanh trang) or (hanh trinh)) cua nhung cong van phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - ((hanh trang) OR (hanh trinh)) cua nhung cong van phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - ((hanh trang) or (hanh trinh)) cua nhung cong van phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (hieu lang)) - ((hanh trang) or (hanh trinh)) cua nhung cong van phan cau*.