Perhaps you should try some spelling variations:
dong phuong » duong phuong, dung phuong, dong huong
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
phuong ban » phuong bang, phuong lan, phuong bac
hieu lang » chieu sang, hieu quang, nhieu tang
trinh han » trinh quan
ban thanh » ban hanh, ban hang
han dong » hanh dong, phan dong, han duong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) or (hieu lang)) - hanh trinh han dong phuong ban thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (hieu lang)) - hanh trinh han dong phuong ban thanh san.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (hieu lang)) - hanh trinh han dong phuong ban thanh san*.