Perhaps you should try some spelling variations:
lanh manh » lanh tranh, lan anh, van manh
van thanh » ban thanh, van tuan
cua thong » cua thuong, cua khong, cua tong
chi sach » chinh sach, chieu sach, co sach
cong tac » cong ty
toan cao » toan ban, toan tap
doi chi » doi khi

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) or (van thanh)) cua thong ((cong san) OR (cong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - ((lanh manh) OR (van thanh)) cua thong ((cong san) OR (cong tac)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi sach - ((lanh manh) or (van thanh)) cua thong ((cong san) OR (cong tac)) toan cao".
• Adding a wildcard symbol may retrieve word variants: doi chi sach - ((lanh manh) or (van thanh)) cua thong ((cong san) OR (cong tac)) toan cao*.