Perhaps you should try some spelling variations:
thanh tinh » thanh binh, nhanh tinh, than kinh
dung duong » dung dong, dong duong, dung dung
theo dieu » theo tieu, theo chieu, thuoc dieu
duong van » duong va, luong va, dang van
tinh ung » tinh dung, trinh ung, tinh hung
toan tai » toan tap, doanh tai, toan cao
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: theo dieu hanh - thanh tinh ung dung duong van ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dieu hanh - thanh tinh ung dung duong van ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo dieu hanh - thanh tinh ung dung duong van ((toan tai) or (toan ban))*.