Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham du de snippets" » "thap du de snippets", "tham do de snippets", "pham duc de snippets", "tham duy de snippets", "tham d de snippets", "tham cu de 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: (((("tham du de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tham du de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham du de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham du de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.