Perhaps you should try some spelling variations:
thuoc dieu » thuc dieu, hoc dieu, thuat dieu
nhung cong » dung cong, thong cong, hang cong
trinh vat » trinh van, trinh luat, sinh vat
trinh va » trinh van, trinh ve, trinh vi
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc dieu hanh - hanh ((trinh va) OR (trinh vat)) nhung cong ((dan than) or (ban than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc dieu hanh - hanh ((trinh va) OR (trinh vat)) nhung cong ((dan than) OR (ban than)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc dieu hanh - hanh ((trinh va) OR (trinh vat)) nhung cong ((dan than) or (ban than)) cao".
• Adding a wildcard symbol may retrieve word variants: thuoc dieu hanh - hanh ((trinh va) OR (trinh vat)) nhung cong ((dan than) or (ban than)) cao*.