Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hung van ke snippets" » "phung van ke snippets", "nhung van ke snippets", "dung van ke snippets", "hung van ket snippets", "hung van de snippets", "hung van ky 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: (((("python using java snippets") or ("hung van ke snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("hung van ke snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( hung van ke snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("hung van ke snippets"))) or ("locating bug code snippets"))*.