Perhaps you should try some spelling variations:
mang luan » tang luan, bang luan, mong luan
hang luan » tang luan, dung luan
dang cong » dung cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
theo te » theo tu, theo tieu, theo yeu
te sach » toc sach

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

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