Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach noi voi snippets" » "cach thoi voi snippets", "hanh noi voi snippets", "anh noi voi snippets", "cach doi voi snippets", "cach moi voi snippets", "cach noi doi 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: (((("cach noi voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach noi voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach noi voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach noi voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.