Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho tu che snippets" » "cho tu che snippets", "kho tu che snippets", "phong tu che snippets", "pho tu chu snippets", "pho tu chi snippets", "pho ty che 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: (((("pho tu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho tu che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho tu che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho tu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.