Perhaps you should try some spelling variations:
thien anh » thien danh, thien thanh, thien chanh
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
tien anh » tieng anh, tien manh, dien anh
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
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: hoc ((thien anh) or (tien anh)) - hanh tang cua dung cong dan ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (tien anh)) - hanh tang cua dung cong dan ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien anh) or (tien anh)) - hanh tang cua dung cong dan ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) or (tien anh)) - hanh tang cua dung cong dan ((toan cao) OR (toan ban))*.