Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan va moi snippets" » "quan vi moi snippets", "quan ha moi snippets", "luan va moi snippets", "quan va mot snippets", "quan ve moi snippets", "quan va mo 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: (((("quan va moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan va moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan va moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan va moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.