Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
khang cong » hang cong, thanh cong, dang cong
hieu lang » chieu sang, hieu quang, nhieu tang
thang van » tang van, thanh van, thong van
van khang » van khanh, van thanh, van quang
toc hieu » toc thieu, doc hieu, hoc thieu
cong van » cong vang, cong san, song van
phan van » pham van, thanh 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: toc hieu lang - thanh thang van khang cong van ((phan tu) OR (phan van))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc hieu lang - thanh thang van khang cong van ((phan tu) OR (phan van))*".