Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong nam le snippets" » "dong ha le snippets", "dong tai le snippets", "dong va le snippets", "dong nam lo snippets", "dong nam he snippets", "dong nam de 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: (((("dong nam le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong nam le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong nam le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong nam le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.