Perhaps you should try some spelling variations:
thuoc dieu » thuc dieu, hoc dieu, thuat dieu
nhung cong » dung cong, thong cong, hang cong
trinh van » trinh han, trinh quan, trinh toan
trinh va » trinh vat, 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 van)) 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 van)) nhung cong ((dan than) OR (ban than)) cao.
• Adding a wildcard symbol may retrieve word variants: thuoc dieu hanh - hanh ((trinh va) or (trinh van)) nhung cong ((dan than) or (ban than)) cao*.