Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bach dan phe snippets" » "bach dang phe snippets", "bac dan phe snippets", "bach van phe snippets", "bach dan pho snippets", "bach dan he snippets", "bach dan phan 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: (((("bach dan phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bach dan phe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bach dan phe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bach dan phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.