Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho phu du snippets" » "cho phu du snippets", "phong phu du snippets", "khoa phu du snippets", "pho phu dau snippets", "pho phu nu snippets", "pho khu du 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 phu du 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 phu du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho phu du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho phu du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.