Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua lam son snippets" » "cua lam son snippets", "qua la son snippets", "qua lao son snippets", "qua lam san snippets", "qua lam sang snippets", "qua lang son 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: (((("qua lam son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua lam son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua lam son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua lam son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.