Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong la du snippets" » "cuong ma du snippets", "cung la du snippets", "cuong le du snippets", "cuong lap du snippets", "cuong la duy snippets", "cuong ly du snippets"
"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: (((("cuong la du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuong la du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong la du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong la du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.