Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"song van duy snippets" » "hoang van duy snippets", "trong van duy snippets", "duong van duy snippets", "song van dung snippets", "song van duy slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("song van duy snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("song van duy snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( song van duy snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("song van duy snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.