Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
cong hoang » cong hoan, thong hoang, vuong hoang
hieu lang » chieu sang, hieu quang, nhieu tang
thien anh » thien danh, tien anh, thien thanh
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
hoang van » hang va
van ca » van cau, van cua, dan ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu lang) or (thien anh)) - hanh tranh cua cong cong hoang van ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu lang) OR (thien anh)) - hanh tranh cua cong cong hoang van ca*.