Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dep ben chen snippets" » "dep ren chen snippets", "dep chen chen snippets", "dep bing chen snippets", "dep ban 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: (((("dep ben 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: (((("dep ben chen snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dep ben chen snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dep ben chen snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.