Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
thiet tach » chiet tach, thien hach, thuat tach
hanh doanh » hang doanh, doanh doanh, kinh doanh
luan phong » luan phuong, xuan phuong, van phong
phong cong » phong chong, thong cong, chong cong
ho thiet » hoc thiet, hoa thiet, so thiet
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho thiet tach - ((hanh doanh) OR (chinh doanh)) luan phong cong tan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho thiet tach - ((hanh doanh) OR (chinh doanh)) luan phong cong tan van ban".
• Adding a wildcard symbol may retrieve word variants: ho thiet tach - ((hanh doanh) OR (chinh doanh)) luan phong cong tan van ban*.