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