Perhaps you should try some spelling variations:
thanh dang » thanh hang, thanh dan, thanh dong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, mot chieu
hanh dung » thanh dung, anh dung, hanh dong
van thanh » ban thanh, van tuan
lluan van » luan va, luan von, quan van
dung van » duong van, dung va, dung von
dang van » hoang van, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - hanh dung van thanh dang van ((luan van) or (lluan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - hanh dung van thanh dang van ((luan van) OR (lluan van))*.