Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"web bung dan snippets" » "web bang dan snippets", "web huong dan snippets", "web ban dan snippets", "web dung dan snippets", "web tung dan snippets", "web hung dan snippets", "web bung dan slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("web bung dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("web bung dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( web bung dan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("web bung dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.