Perhaps you should try some spelling variations:
mang luan » tang luan, bang luan, mong luan
hang luan » tang luan, dung luan
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
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) OR (cong tan)) 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) OR (cong tan)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo te sach - hanh ((mang luan) or (hang luan)) dang ((cong dan) OR (cong tan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo te sach - hanh ((mang luan) or (hang luan)) dang ((cong dan) OR (cong tan)) toan cao*.