Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho tu hoai snippets" » "pho thu hoai snippets", "pho tu hoa snippets", "pho thi hoai snippets", "cho tu hoai snippets", "kho tu hoai snippets", "phong tu hoai 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 hoai 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 hoai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho tu hoai snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho tu hoai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.