Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
trinh cua » tinh cua, trinh luat, trinh quan
bang cong » dang cong, bang song, hang cong
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: hoc chinh sach - hanh trinh cua ((nhung cong) or (bang cong)) ((dan than) or (ban than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - hanh trinh cua ((nhung cong) OR (bang cong)) ((dan than) OR (ban than)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - hanh trinh cua ((nhung cong) or (bang cong)) ((dan than) or (ban than)) cao*.