Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
thanh con » thanh cong, thanh son, thanh cuong
toc hieu » toc thieu, doc hieu, hoc thieu
con gian » don gian, con giap, chong gian
gian dan » gian lang
dan cong » dang cong, van cong, dan dong
cong dan » cong san, cong tan, huong dan
phan van » pham van, thanh van, luan van
phan dau » phan tu, hang dau

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 con gian dan cong dan ((phan van) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu lang - thanh con gian dan cong dan ((phan van) OR (phan dau))*.