Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chi sach » chinh sach, chieu sach, co sach
manh cua » doanh cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap
doi chi » doi khi
ban cua » ban quan

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 cua) or (ban cua)) thong cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - lanh ((manh cua) OR (ban cua)) thong cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - lanh ((manh cua) or (ban cua)) thong cong tac toan cao*.