Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong danh tu slippers" » "cuong danh tu slippers", "cong dan tu slippers", "cong thanh tu slippers", "cong anh tu slippers", "cong hanh tu slippers", "cong doanh thu slippers", "cong danh tu slippery", "cong danh 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 danh 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 danh tu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong danh tu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong danh tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.