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