It is just like the case when you search something in your laptop. Searching a same term in each partition separately will take a lot of time. If you use the general search bar in My Computer, you will get the good results in no time. So, I don't think searching for a query separately in each section will prove to be a good practice. It will just waste your time and provide you irrelevant results.
But it is possible a search a particular section of techulator with this little trick.
- If you want to search something within Ask Expert section, then use this keyword in the search box - site:http://www.techulator.com/experts/ your keyword
- If you want to search something in resource section, then use this keyword -
site:http://www.techulator.com/resources/ your keyword
- If you want to search something in Forum section, then use this keyword -
site:http://www.techulator.com/forum/ your keyword
If you are still confused, then feel free to ask me.