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