Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap bien da snippets" » "phan bien da snippets", "phap dien da snippets", "phap hien da snippets", "phap bien dai snippets", "phap bien dao snippets", "phap vien da 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: (((("phap bien da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap bien da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap bien da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap bien da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.