Quote:I mean, making a list of the most common words in the script and give them a meaning taking into account the topics of the drawings in the book(or the texts in other herbals ? Are there any attempts made ? Or is the amount of possibilities killing this method?
This is a valid approach but surprisingly nothing serious was done in that matter. You may be the first

You may check how I use this approach with another mysterious manuscript - Rohonc Codex: You are not allowed to view links. Register or Login to view.
With Voynich it seems much harder than with Rohonc. In "normal" language the most common words should be things like "and", "to", "in", "so" etc. But in Voynich script we don't have good candidates for such words. Most common words like "daiin" behave differently than "and". There was some advanced statistical research made about it. If I understand it correctly, statistics seem to show that Voynich text is not random and is kind of clustered by subjects but we are unable to recognize typical parts of speech: nouns, verbs, conjunctions etc. We don't know even where supposed sentences start and where they end.
We can't even recognize any numbers. In many unknown scripts (Babylonian cuneiform, Mayan script, Linear B etc.) numbers were broken first because they are very regular. In Voynich Manuscript we couldn't do it.
It is all very puzzling. Would this supposed artificial language be so different from everything else?

