Perhaps you should try some spelling variations:
khien tinh » thien tinh, khien thich, bien tinh
thanh tuan » thanh toan, thanh xuan, thanh thanh
tuan trong » thuan trong, quan trong, tran trong
hoc khien » hoc hien, hoc nghien, hoc thieu
anh thanh » danh thanh, nhanh thanh, thanh thanh
cong san » cong tac
san van » tan van, luan van, tran 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 khien tinh - anh thanh tuan trong cong san van ban~.
• Adding a wildcard symbol may retrieve word variants: hoc khien tinh - anh thanh tuan trong cong san van ban*.