Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can nghe que snippets" » "van nghe que snippets", "cap nghe que snippets", "cac nghe que snippets", "can nghi que snippets", "can nghe quoc snippets", "can nghe che 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: (((("can nghe que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can nghe que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can nghe que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can nghe que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.