Perhaps you should try some spelling variations:
bhutan gender » human gender, rhoton gender
gender yang » gender change, gender barung
yang yang » wang yang, wang yan
3 bhutan » _ bhutan, 3.2 bhutan, 16 bhutan
yang aid » yang anda, yang mind, can aid
yang yi » yang xi, yang jui
ng 3 » ngs 3, nr 3, n 3
apps » app

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang yang) OR (yang yi))) OR (yang di))ng 3 bhutan gender yang aid how (apps OR ppps) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang yang) or (yang yi))) or (yang di))ng 3 bhutan gender yang aid how (apps OR ppps) ;~".
• Adding a wildcard symbol may retrieve word variants: ((((yang yang) or (yang yi))) or (yang di))ng 3 bhutan gender yang aid how (apps OR ppps) ;*.