Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hanh trang » thanh trung, canh tranh, hanh trinh
hanh mang » nhanh mang, nhanh lang, thanh hang
dung cong » dung trong
tien anh » tieng anh, tien manh, dien anh
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 ((thien thanh) or (tien anh)) - ((hanh trang) or (hanh mang)) cua dung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien thanh) OR (tien anh)) - ((hanh trang) OR (hanh mang)) cua dung cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien thanh) or (tien anh)) - ((hanh trang) or (hanh mang)) cua dung cong dan toan cao*.