Here it is, It's not the VS920, but it's close enough.
Direct Link:
http://dc530.4shared.com/download/rfyZgn17/EN_VS910_SVC_110526.pdf
Here is the one for VS920
http://dc585.4shared.com/download/DtWGszW-/EN_LG-VS920_SVC_ENG_111212-2.pdf
Direct Link:
http://dc530.4shared.com/download/rfyZgn17/EN_VS910_SVC_110526.pdf
Here is the one for VS920
http://dc585.4shared.com/download/DtWGszW-/EN_LG-VS920_SVC_ENG_111212-2.pdf