Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach la du snippets" » "cach lam du snippets", "cach le du snippets", "cach ta du snippets", "cach lap du snippets", "cach la duy snippets", "cach ly du 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: (((("cach la du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach la du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach la du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach la du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.