Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
thong tap » thong cap, tong tap, thong tai
ho chieu » theo chieu, doi chieu, mot chieu
tap toan » tap doan, tap quan, bai toan
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sang - canh doanh ((cua thong) OR (cua khong)) thong tap toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) sang - canh doanh ((cua thong) OR (cua khong)) thong tap toan cao~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sang - canh doanh ((cua thong) OR (cua khong)) thong tap toan cao*.