Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi dan bon snippets" » "phi san bon snippets", "phi van bon snippets", "chi dan bon snippets", "phi dan mon snippets", "phi dan dong 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: (((("phi dan bon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi dan bon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi dan bon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi dan bon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.