Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat de nghe snippets" » "hat ve nghe snippets", "hat da nghe snippets", "hat re nghe snippets", "nhat de nghe snippets", "vat de nghe snippets", "dat de nghe 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: (((("hat de nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hat de nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat de nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat de nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.