Perhaps you should try some spelling variations:
"ca cau sio2 grippers" » "ca cau soft grippers", "ca cao sio2 grippers", "ca bao sio2 grippers", "cac cau sio2 grippers", "can cau sio2 grippers", "cua cau sio2 grippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ca cau sio2 grippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ca cau sio2 grippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ca cau sio2 grippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ca cau sio2 grippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.