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