Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh duy doc snippets" » "hanh dua doc snippets", "manh duy doc snippets", "hoang duy doc snippets", "hanh day doc snippets", "hanh duy dac snippets", "hanh duy dot 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: (((("hanh duy doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh duy doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh duy doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh duy doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.