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