Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh cho 26 slippers" » "doanh cho 26 slippers", "dan cho 26 slippers", "dinh cho 26 slippers", "danh cho 26 slippery", "danh cho 26 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 cho 26 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 cho 26 slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh cho 26 slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh cho 26 slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.