Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan thanh » ban thanh, van thanh
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van 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: doi ((hieu nganh) or (chieu sang)) - hanh trinh quan thanh cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu nganh) OR (chieu sang)) - hanh trinh quan thanh cong dan phan cau.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu nganh) or (chieu sang)) - hanh trinh quan thanh cong dan phan cau*.