Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan nhung » luan chung, luan hung, quan nhung
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
sat phan » sat nhan, vat phan, xuat phan
van phan » van phong, van thanh, luan phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh trinh luan nhung cong ((sat phan) or (van phan)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh trinh luan nhung cong ((sat phan) OR (van phan)) cac.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh trinh luan nhung cong ((sat phan) or (van phan)) cac*.