Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh chua » tranh cua, trinh chuan, tranh chap
chua xang » chua nang, chuc nang, chu bang
xang cong » dang cong, bang cong, hang cong
cong vang » cong lang, cong quang, cong ngang
vang than » sang than, van than, cang thang
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien danh) or (tieng anh)) - hanh tranh chua xang cong vang than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (tieng anh)) - hanh tranh chua xang cong vang than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (tieng anh)) - hanh tranh chua xang cong vang than cap*.