what is the right way in searching to avoid duplicatin

[mowafi3m]

Dear our moderators ,
after my suffering with the searching engine and after several duplication from my side ,
I hope from you to clarify by photos , How can I search by the ( author - ISBN - size - etc. )
and if the subject was involved as a (new reply ) in a different post , how can I search?
best regards to all

[Grunf]

I search by the default search engine our forum provide us:

I leave everything as it is and in the field called "Search by Keyword" I type author surname and/or ISBN (without minus signs (-) between the numbers) and/or key part of the title of the book (a part of the book title that is specific)....
That's it - nothing special


How I know the book is already posted to CivilEA without searching? - I have photographic memeory - as kid I was collecting stamps, so as I see some cover image, I just know wheather a book is already posted or not...


One more time I'd like to ask our members not to post ISBN numbers with minus signs between numbers due to better and easier search for book.
Bad ISBN: 0-521-88-638-4
Good ISBN: 0521886384


With regards,
Grunf