Perhaps you should try some spelling variations:
thang cong » thanh cong, thang long, thong cong
tieu manh » tien manh, hieu manh, tieu danh
duc thang » duc tan, duc hung
dung duc » duong duc, dang duc, dung du
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 tieu manh - sach dung duc thang cong dan toan cau~.
• Adding a wildcard symbol may retrieve word variants: theo tieu manh - sach dung duc thang cong dan toan cau*.