There's lot's of pieces in such a small matchbox. Still, it's as easy as child's play to put them all together.
Take all pieces out of the box ans put them on a table. Have a look at the illustrated instruction.
All pieces and slots are numbered [with some exceptions for boxes in the standard format]. Sort the pieces by their numbers. Compare them with the illustration to find their places. Some of them are complicated – make sure you don't mix them up.
Find the piece number one to start with. Please use both hands and always handle the pieces as shown in the instruction. When you fold and unfold the pieces and prepare the slots be gentle but firm. Do one step after the other. Putting the pieces on place one by one you will see the box unfold. You won't need glue and you will always be able to dissemble the box and assemble it later.