Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vong di le snippets" » "vong doi le snippets", "vong bi le snippets", "duong di le snippets", "vong do le snippets", "vong de 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: (((("vong di 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: (((("vong di le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vong di le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vong di le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.