Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
hanh tranh » canh tranh, hanh trinh, hanh trang
thong cong » trong cong, tong cong, thong thong
tranh cua » doanh cua, manh cua
kim ngan » kim ngoc
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap
hoc kim » hoc ki, nhuoc kim, hoc kinh

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

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