Perhaps you should try some spelling variations:
chua nhung » cua nhung, thuat nhung, cua chung
hieu manh » chieu xanh, hieu nganh, dieu hanh
sua nhung » cua nhung, qua nhung, quan nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong san » cong tac
san phan » san pham, van phan, sat phan
phan dau » phan tu, hang dau

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 chinh ((sua nhung) OR (chua nhung)) cong san phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - hanh chinh ((sua nhung) OR (chua nhung)) cong san phan dau".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh chinh ((sua nhung) OR (chua nhung)) cong san phan dau*.