Perhaps you should try some spelling variations:
nhuan trong » thuat trong, quan trong, chuan trang
chinh doanh » kinh doanh
thiet tach » chiet tach, thien hach, thuat tach
hanh doanh » hang doanh, doanh doanh, kinh doanh
nhan trong » nhat trong, nhin trong, phan trong
ho thiet » hoc thiet, hoa thiet, so thiet
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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)) ((nhan trong) OR (nhuan trong)) cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho thiet tach - ((hanh doanh) OR (chinh doanh)) ((nhan trong) OR (nhuan trong)) cong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho thiet tach - ((hanh doanh) or (chinh doanh)) ((nhan trong) OR (nhuan trong)) cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: ho thiet tach - ((hanh doanh) or (chinh doanh)) ((nhan trong) OR (nhuan trong)) cong dan toan ban*.