Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
hieu lang » chieu sang, hieu quang, nhieu tang
tuong dan » huong dan, tung dan, xuong dan
doi hieu » doi chieu, doc hieu, doi hien
ung song » vung song, xuong song, nang song
dan ung » dan dung, dan vung, dang ung
van tan » van tuan, van tai, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - thanh tuong dan ung song ((van tan) OR (van ban)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi hieu lang - thanh tuong dan ung song ((van tan) OR (van ban)) cau".
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - thanh tuong dan ung song ((van tan) OR (van ban)) cau*.