Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam thi du snippets" » "lam thoi du snippets", "dam thi du snippets", "lam tai du snippets", "lam thi dua snippets", "lam thi dau snippets", "lam thi diu 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 thi du 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 thi du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam thi du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam thi du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.