Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chiet tach » chieu sach
doi chiet » doi chieu, doi chi, doi viet
doanh cua » doanh luan
mang cua » manh cua, dung cua, cong cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
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 chiet tach - cach ((((mang cua) OR (ban cua))) or (doanh cua)) nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chiet tach - cach ((((mang cua) OR (ban cua))) OR (doanh cua)) nhung cong tac toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chiet tach - cach ((((mang cua) OR (ban cua))) or (doanh cua)) nhung cong tac toan cau*".