Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung ke di snippets" » "nhung ky di snippets", "nhung kien di snippets", "nhung yeu di snippets", "nhung ke dia snippets", "nhung ke doi snippets", "nhung ke do 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: (((("nhung ke di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung ke di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung ke di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung ke di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.