Perhaps you should try some spelling variations:
duong cong » dung cong, luong cong, duong trong
tranh han » tranh hang, trinh han, tranh ban
khia canh » kho canh, thi canh
ung cong » dung cong, luong cong, cuong cong
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
thi anh » thi hanh, thi thanh, thich anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((khia canh) OR (thi anh)) - canh tranh han ((ung cong) OR (duong cong)) tan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((khia canh) OR (thi anh)) - canh tranh han ((ung cong) OR (duong cong)) tan toan cao".
• Adding a wildcard symbol may retrieve word variants: doi ((khia canh) OR (thi anh)) - canh tranh han ((ung cong) OR (duong cong)) tan toan cao*.