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