Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhung cong » hang cong, nhung don, nhung lang
thong cong » trong cong, tong cong, thong thong
theo hieu » theo chieu, theo tieu, thien hieu
doanh cua » doanh luan
dung cong » dung trong
dan toan » van toan, dan than, manh toan
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: theo hieu quang - hanh doanh cua ((((nhung cong) OR (dung cong))) or (thong cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu quang - hanh doanh cua ((((nhung cong) OR (dung cong))) OR (thong cong)) dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu quang - hanh doanh cua ((((nhung cong) OR (dung cong))) or (thong cong)) dan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo hieu quang - hanh doanh cua ((((nhung cong) OR (dung cong))) or (thong cong)) dan toan cao*.