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