Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
doi chieu » doc hieu, doi chi, mot chieu
cong doan » cong dan, cong hoan, dong doanh
doan phan » doanh phan, toan phan, dan phan
ho chieu » theo chieu, hoc thieu, mot chieu
phan dau » phan tu, hang dau
manh va » hanh va, anh va, minh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chieu)) sach - lanh ((manh va) or (hanh vi)) thuong cong doan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - lanh ((manh va) OR (hanh vi)) thuong cong doan phan dau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) sach - lanh ((manh va) or (hanh vi)) thuong cong doan phan dau*.