Perhaps you should try some spelling variations:
thang cong » thanh cong, thang long, thong cong
chiet tach » chieu sach
hoc chiet » hoc thiet, hoc nhiet, hoc hien
manh hung » anh huong
nam thang » nam thanh, tam than, nam trong
cong doan » cong dan, cong hoan, dong doanh
hung nam » chung nam, nhung nam, sung nam
doan van » doan va, hoang van, luan 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 chiet tach - manh hung nam thang cong doan van ban~.
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - manh hung nam thang cong doan van ban*.