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