Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hiem ngan » viem gan
tranh cua » doanh cua, manh cua
cua nhung » va nhung
kim ngan » kim ngoc
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hiem ngan) or (kim ngan)) - hanh tranh cua nhung ((cong van) or (song van)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hiem ngan) OR (kim ngan)) - hanh tranh cua nhung ((cong van) OR (song van)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hiem ngan) or (kim ngan)) - hanh tranh cua nhung ((cong van) or (song van)) toan cao*.