Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung ke le snippets" » "nhung ky le snippets", "nhung kien le snippets", "nhung yeu le snippets", "nhung ke he snippets", "nhung ke ve snippets", "nhung le le 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 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: (((("nhung ke le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung ke le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung ke le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.