Perhaps you should try some spelling variations:
thuoc dieu » thuc dieu, hoc dieu, thuat dieu
hanh tang » hanh trang, anh tang, hanh mang
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
tang va » trang va, tang van, thang va

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 tang va nhung ((cong tan) or (cong tac)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc dieu hanh - hanh tang va nhung ((cong tan) OR (cong tac)) ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: thuoc dieu hanh - hanh tang va nhung ((cong tan) or (cong tac)) ((toan cau) or (toan ban))*.