Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi quan hon snippets" » "thi quan hon snippets", "phap quan hon snippets", "phan quan hon snippets", "phi quan ho snippets", "phi quan hoang snippets", "phi quang hoan 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 hon 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 hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi quan hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi quan hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.