Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hap dan nghe snippets" » "hap dang nghe snippets", "hap van nghe snippets", "hap day nghe snippets", "hat dan nghe snippets", "hai dan nghe snippets", "ham dan 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: (((("hap dan 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: (((("hap dan nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hap dan nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap dan nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.