Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi quan do snippets" » "thi quan do snippets", "phap quan do snippets", "phan quan do snippets", "phi quan doi snippets", "phi quan doc snippets", "phi quang do 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: (((("phi quan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi quan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi quan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi quan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.