Perhaps you should try some spelling variations:
thuong con » thuong dong, truong cong, thong cong
doan phan » doanh phan, toan phan, dan phan
chi sach » chinh sach, chieu sach, co sach
con doan » cong doan, chan doan, cong hoan
phan dau » phan tu, hang dau
doi chi » doi khi
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: doi chi sach - lanh ((manh va) or (hanh vi)) thuong con doan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - lanh ((manh va) OR (hanh vi)) thuong con doan phan dau.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - lanh ((manh va) or (hanh vi)) thuong con doan phan dau*.