Other alleged searches included "I nearly got away with it best episodes" and "hanging yourself"; the latter search happened on September 22, per court records, and resulted in a visit to a website on the topic.
The children - Conner Snyder, 8, and Brinley Snyder, 4 - were both unresponsive and hanging from the same dog leash, the Reading Eagle reported.
Lisa Snyder, 36, was charged Monday, Dec. 2 with two counts of both first- and third-degree murder, as well as two felony counts of endangering the welfare of children, Berks County District Attorney John Adams said at a press conference.
It is not clear how Snyder allegedly got her children in the position they were later found in.
She is being held without bail. Dennis Charles is listed as Snyder's attorney; he was not in the office and could not be reached for comment.More news: Putin, Xi inaugurate `Power of Siberia` pipeline to boost energy ties
In audio obtained by the Morning Call of Allentown, dispatchers alert police to a 911 call from the mother.
Lisa Snyder, who turns 37 on December 13, told a 911 operator her son had been bullied and "didn't want to go alone".
As the audio continues, the dispatcher relays to responding officers that Conner had specified in his threats that he "didn't want to go alone".
"I would agree that we all may think that a mother of children who are found hanging would make every effort possible to save them", Adams said.
"The wire was wrapped around the main support beam of the basement and each end was wrapped around the victims' necks", Adams said.More news: Vet rape-murder case accused should be lynched: Jaya Bachchan
The station quoted authorities as saying that a person who lived in Snyder's house rejected the notion that Conner was suicidal or had been bullied.
Days after the children died, Snyder took to Facebook, updating her profile with a photo and the saying, "Words scar, rumors destroy, bullies kill".
Want to keep up with the latest crime coverage? Adams could also seek the death penalty, but said he had not made a decision.
According to Adams, Conner was incapable of tying his own shoes.
Investigators say Snyder told a friend she was suffering from depression and "didn't care about her kids", according to The Morning Call.More news: Typhoon Kammuri slams into Philippines, forcing thousands to flee