Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
cua thuong » cua truong, cua phuong, ca thuong
doi chieu » doc hieu, doi chi, ho chieu
lanh manh » lanh tranh, lan anh, van manh
cua thong » cua khong, cua tong, suat thong
thong tac » thong cac, tuong tac, thong tai
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 thong) OR (cua thuong)) thong 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 thong) OR (cua thuong)) thong 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 thong) OR (cua thuong)) thong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo chieu)) sach - lanh manh ((cua thong) OR (cua thuong)) thong tac toan cao*.