Keyword Analysis & Research: the mapper returned a null publisher

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
the mapper returned a null publisher	0.61	0.4	8176	31	36
the	0.72	0.5	5856	17	3
mapper	0.53	0.5	6078	70	6
returned	1.39	0.9	6247	12	8
a	0.61	0.2	5310	32	1
null	1.67	0.6	906	14	4
publisher	1.26	0.7	4986	7	9

Keyword	CPC	PCC	Volume	Score
the mapper returned a null publisher	1.21	0.3	1990	5
the mapper returned a null value	0.36	0.5	8223	31
the mapper returned a null observablesource	2	0.5	3451	58
the mapper function returned a null value	1.31	0.7	5295	95
the mapper returned a null mono	0.65	0.1	9889	63
find why mapper could be null	0.92	0.2	5147	42
this.mapper is null	0.22	0.6	6719	9
mapper.update null	0.4	0.2	5421	61
mapper.update null wrapper	0.96	0.7	209	87
mapper not be found	0.17	0.5	5648	18