Perhaps you should try some spelling variations:
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan dung » lan dung, luan dong, luan hung
theo toc » ho toc, thac toc, theo bo
toc sach » hoc sach, doc sach, thuoc sach
cong dan » cong san, cong tan, cong dong
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo toc sach - hanh tang luan dung ((cong dan) OR (huong dan)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo toc sach - hanh tang luan dung ((cong dan) OR (huong dan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo toc sach - hanh tang luan dung ((cong dan) OR (huong dan)) toan cau*.