Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam dao nghe snippets" » "lam day nghe snippets", "lam da nghe snippets", "lam dat nghe snippets", "lam dau nghe snippets", "nam dao nghe snippets", "lam bao nghe 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: (((("lam dao nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam dao nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam dao nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam dao nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.