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