Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc duoc dan slippers" » "duoc duoc dan slippers", "hoc duoc dan slippers", "doc cuoc dan slippers", "doc duc dan slippers", "doc duoc ban slippers", "doc duoc dai slippers", "doc duoc dan slippery", "doc duoc dan grippers"
"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: (((("doc duoc dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc duoc dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc duoc dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc duoc dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.