Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu cac dan slippers" » "cuu cac dan slippers", "huu bac dan slippers", "hieu cac dan slippers", "huu cac dan slippery", "huu cac 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: (((("huu cac 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: (((("huu cac dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu cac dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu cac dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.