Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han du voi snippets" » "han dau voi snippets", "van du voi snippets", "han tu voi snippets", "han dua voi snippets", "han da voi snippets", "han do voi 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: (((("han du voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han du voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han du voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han du voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.