Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong do tu slippers" » "cong dot tu slippers", "cuong do tu slippers", "cong so tu slippers", "cong co tu slippers", "cong de tu slippers", "cong do tu slippery", "cong do tu 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: (((("cong do tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong do tu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong do tu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong do tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.