Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
cua phuong » cuu phuong, cuc phuong, luan phuong
canh manh » lanh manh, canh tranh, cach mang
hoc dieu » hoc thieu, hoc hien
manh cua » doanh cua, ban cua
cong tan » cong tac, cong san, cong thanh
chan dau » phan dau, han dau, chuan dao
doan » doanh, dan, toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc dieu hanh - canh manh cua phuong cong tan ((chan dau) or (chan doan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dieu hanh - canh manh cua phuong cong tan ((chan dau) OR (chan doan)).
• Adding a wildcard symbol may retrieve word variants: hoc dieu hanh - canh manh cua phuong cong tan ((chan dau) or (chan doan))*.