Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh han
canh trinh » canh tranh, hanh trinh, canh tinh
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
dien anh » tieng anh, dien dan
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((dien anh) or (dieu hanh)) - canh trinh luan dang cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((dien anh) OR (dieu hanh)) - canh trinh luan dang cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((dien anh) or (dieu hanh)) - canh trinh luan dang cong dan toan ban*.