Perhaps you should try some spelling variations:
gender truong » gender barung, gender typing
truong tehran » truong tran, truong thanh
tehran one » than one
yang yang » wang yang, wang yan
yan wang » yuan wang, qian wang, yan liang
yan a » can a, yan _, jan a
sau » saur, sabu, saul

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan wang) OR (yang yang)) yan a gender truong tehran one sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan wang) OR (yang yang)) yan a gender truong tehran one sau ;*".