Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
thanh tu » hanh tu, nhanh tu, thanh tung
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
ha tinh » may tinh
va tinh » may tinh
tu cua » hu cua, vu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((ha tinh) or (va tinh)) - thanh tu cua ((nhung cong) or (thong cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((ha tinh) OR (va tinh)) - thanh tu cua ((nhung cong) OR (thong cong)) dan toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((ha tinh) or (va tinh)) - thanh tu cua ((nhung cong) or (thong cong)) dan toan cao*.