Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap dan voi snippets" » "lap dat voi snippets", "lap ban voi snippets", "hap dan voi snippets", "lap dan hoi snippets", "lap da 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: (((("lap dan 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: (((("lap dan voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap dan voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap dan voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.