Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu dao den snippets" » "khu do den snippets", "khu bao den snippets", "chuc dao den snippets", "khu dao dan snippets", "khu dan den snippets", "khu day den 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: (((("khu dao den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khu dao den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu dao den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu dao den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.