Perhaps you should try some spelling variations:
thuyet danh » thuyet dan, thuyet anh, khuyet danh
hoc thuyet » hoc chuyen
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tang cua » mang cua, hang cua, tang luan
cong dan » cong tan, cong dong, cong tac
cong san » cong tac
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: hoc thuyet danh - hanh tang cua nhung ((((cong dan) OR (cong san))) or (huong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thuyet danh - hanh tang cua nhung ((((cong dan) OR (cong san))) OR (huong dan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thuyet danh - hanh tang cua nhung ((((cong dan) OR (cong san))) or (huong dan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thuyet danh - hanh tang cua nhung ((((cong dan) OR (cong san))) or (huong dan)) toan cau*.