Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"suc ren chen snippets" » "suc ben chen snippets", "suc tren chien snippets", "suc chen chen snippets", "duc tren chen snippets"
"locating bug code snippets" » "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: (((("suc ren chen snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("suc ren chen snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( suc ren chen snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("suc ren chen snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.