Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung tu nong snippets" » "dung thu nong snippets", "dung tru nong snippets", "dung cu nong snippets", "dung tu dong snippets", "dung tu cong snippets", "dung tu tong 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: (((("dung tu nong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tu nong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tu nong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tu nong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.