Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai van voi snippets" » "thai van voi snippets", "ha van voi snippets", "hai tan voi snippets", "hai van loi snippets", "hai van noi snippets", "hai van von 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: (((("hai van 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: (((("hai van voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai van voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai van voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.