Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu can nghe snippets" » "phu van nghe snippets", "phu cap nghe snippets", "phu cac nghe snippets", "phu san nghe snippets", "pho can nghe snippets", "thu canh 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: (((("phu can 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: (((("phu can nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu can nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu can nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.