Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"so vung le snippets" » "son vung le snippets", "o vung le snippets", "so dung le snippets", "so vuong le snippets", "so vung re 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: (((("so vung 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: (((("so vung le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( so vung le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("so vung le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.