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