Contradiction with Proverbs 8:17
In Proverbs, it states that those who seek wisdom early shall find it, whereas in Song of Solomon 3:3, the seeker does not initially find whom she seeks.
Proverbs 8:17: I love them that love me; and those that seek me early shall find me.
Contradiction with Matthew 7:7
Matthew assures that those who seek will find, contrasting with the failure to find in the initial search in Song of Solomon 3:3.
Matthew 7:7: Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you:
Contradiction with Isaiah 55:6
Isaiah encourages seeking the Lord while He may be found, implying availability, whereas in Song of Solomon 3:3, the seeker does not find whom she seeks at first.
Isaiah 55:6: Seek ye the LORD while he may be found, call ye upon him while he is near:
Contradiction with Jeremiah 29:13
Jeremiah promises finding God if sought with the whole heart, differing from the unfruitful search described in Song of Solomon 3:3.
Jeremiah 29:13: And ye shall seek me, and find [me], when ye shall search for me with all your heart.