Perhaps you should try some spelling variations:
quang nhanh » quang thanh, quang khanh, quang hanh
hanh trang » thanh trung, canh tranh, hanh trinh
hanh trong » anh trong, hinh trong, chinh trong
cong quang » luong quang, thong quang, duong quang
hieu lang » chieu sang, hieu quang, nhieu tang
dang cong » dung cong
nhanh cau » nhanh cay, thanh chau, nhanh ha
nam dang » nam dan, nam danh, nam dong
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - ((hanh trong) or (hanh trang)) nam dang cong quang nhanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((hanh trong) OR (hanh trang)) nam dang cong quang nhanh cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((hanh trong) or (hanh trang)) nam dang cong quang nhanh cau*.