Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
duong cong » dung cong, luong cong, duong trong
canh manh » lanh manh, canh tranh, cach mang
cua duong » cua dong, cua huong, qua duong
manh toan » thanh toan, anh tuan, tinh toan
manh cua » doanh cua, ban cua
dan toan » van toan, dan than, xuan toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu khang - canh manh cua duong cong ((dan toan) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu khang - canh manh cua duong cong ((dan toan) OR (manh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: toc thieu khang - canh manh cua duong cong ((dan toan) or (manh toan)) cau*.