Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
cong danh » cuong danh, cong dan, cong thanh
trinh va » trinh van, trinh vat, trinh ve
cong anh » dong anh, hong anh, cong thanh
tuan ban » tuan bang, toan ban, luan ban
va bang » va nang, va lang, va ban

You may be able to get more results by adjusting your search query.

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