Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi phan bon snippets" » "chi phan bon snippets", "khi nhan bon snippets", "phi phan bon snippets", "khi phan bo snippets", "khi phan cong snippets", "khi phan song 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: (((("khi phan bon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi phan bon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi phan bon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi phan bon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.