Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan do tu slippers" » "nhan dot tu slippers", "nhan mo tu slippers", "nhan co tu slippers", "nhan de tu slippers", "nhan do tu slippery", "nhan 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: (((("nhan 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: (((("nhan do tu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan do tu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan do tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.