Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"song du voi snippets" » "song da voi snippets", "mong du voi snippets", "song ngu voi snippets", "song dua voi snippets", "song 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: (((("song 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: (((("song du voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( song du voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("song du voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.