Perhaps you should try some spelling variations:
dang thuong » hang thuong, dung thuong, dong thuong
dang nguong » dung nguon, tang nguon, dang cuong
nhanh lang » nhanh quang, nhanh thang, nhan dang
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » nhanh mang, hanh trang, thanh hang
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - ((hanh mang) OR (nhanh lang)) cua ((dang nguong) or (dang thuong)) dan than man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - ((hanh mang) OR (nhanh lang)) cua ((dang nguong) OR (dang thuong)) dan than man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu lang - ((hanh mang) OR (nhanh lang)) cua ((dang nguong) or (dang thuong)) dan than man".
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - ((hanh mang) OR (nhanh lang)) cua ((dang nguong) or (dang thuong)) dan than man*.