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