Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuoc san de snippets" » "thuc san de snippets", "thuoc ban de snippets", "thuoc tan de snippets", "thuoc van de snippets", "thuoc dan de snippets", "thuoc jan de 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: (((("thuoc san de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuoc san de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuoc san de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuoc san de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.