Perhaps you should try some spelling variations:
thien hieu » thien nhien, thien chien, thien hue
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhan nhanh » nhanh thanh, nhat hanh
hieu lang » chieu sang, hieu quang, nhieu tang
nhan han » nhan chan, nhan dan, nhan van
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: thien hieu lang - canh doanh ((nhan han) or (nhan nhanh)) cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thien hieu lang - canh doanh ((nhan han) OR (nhan nhanh)) cong dan van ban*.