Perhaps you should try some spelling variations:
tien thanh » tien thinh, tran thanh, den thanh
manh trung » manh tung, thanh trung, manh hung
trung tuan » trung thanh, trung tam, tran tuan
tuan trong » thuan trong, quan trong, tran trong
hoc tien » hoc tieng, hoc hien, hoc vien
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tien thanh - manh trung tuan trong cong dan van ban~.
• Adding a wildcard symbol may retrieve word variants: hoc tien thanh - manh trung tuan trong cong dan van ban*.