Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho dan so snippets" » "pho danh so snippets", "tho dan so snippets", "pho da so snippets", "pho dan soc snippets", "pho dan su snippets", "pho dan 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: (((("pho dan so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho dan so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho dan so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho dan so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.