Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
thanh tran » thanh trang, thanh toan, thanh tra
hoc thieu » toc thieu, hoc hien
cong cong » cong dong, trong cong, dang cong
dung cong » dung trong
tran van » luan van
dan doan » dan toan, tan doan, van doan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu manh - thanh tran van ((cong cong) OR (dung cong)) dan doan va~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - thanh tran van ((cong cong) OR (dung cong)) dan doan va*.