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