Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han tap du snippets" » "han tai du snippets", "toan tap du snippets", "nhan tai du snippets", "han thap du snippets", "han lap du snippets", "han tap 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: (((("han tap 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: (((("han tap du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han tap du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han tap du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.