Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
doanh cua » doanh luan
manh cua » ban cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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

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