Perhaps you should try some spelling variations:
chinh truong » chinh trong, sinh truong, trinh truong
manh truong » manh trung, manh tuong, anh truong
hang cong » dang cong, hang nong, bang cong
hoc dieu » hoc thieu, hoc hien
cua hang » cua dang, cua nhung, cua cong
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
hanh » thanh, anh, hinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc dieu hanh - ((chinh truong) or (manh truong)) cua hang cong san ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dieu hanh - ((chinh truong) OR (manh truong)) cua hang cong san ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc dieu hanh - ((chinh truong) or (manh truong)) cua hang cong san ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc dieu hanh - ((chinh truong) or (manh truong)) cua hang cong san ((toan cau) OR (toan tap))*.