Perhaps you should try some spelling variations:
quang trong » quang truong, quang trung, quan trong
trong quang » truong quang, thong quang, trong quan
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh tran » trinh trang, trinh toan, trinh tren
quang tran » quang tuan, quang trung, quang thanh
hieu manh » hieu nganh, dieu hanh, hien hanh
tran cao » toan cao, tran chau, trang cho

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 xanh) or (hieu manh)) - hanh trinh tran quang trong quang tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hieu manh)) - hanh trinh tran quang trong quang tran cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hieu manh)) - hanh trinh tran quang trong quang tran cao*.