Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
hanh doanh » hang doanh, chinh doanh, doanh doanh
lan phuong » van phuong, dan phuong, lan thuong
doanh lan » doanh luan, doanh ban, doanh van
dang sinh » dang dinh, khang sinh, dang hanh
so thiet » soc thiet, hoc thiet, hoa thiet
dang van » hoang van, hang va
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: so thiet tach - hanh doanh lan phuong ((dang sinh) or (dang van)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so thiet tach - hanh doanh lan phuong ((dang sinh) OR (dang van)) phan lap.
• Adding a wildcard symbol may retrieve word variants: so thiet tach - hanh doanh lan phuong ((dang sinh) or (dang van)) phan lap*.