Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
tranh dang » tranh hang, tran dang, tranh quang
dang quang » dung quang, nang quan, dang hung
hoc thieu » toc thieu, hoc hien
lang cong » bang cong, hang cong, lang dong
dang cong » dung cong
van phan » van phong, van thanh, luan phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu manh - tranh dang quang ((lang cong) or (dang cong)) van phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - tranh dang quang ((lang cong) OR (dang cong)) van phan tu*.