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