Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu phan me snippets" » "thu nhan me snippets", "thuat phan me snippets", "than phan me snippets", "thu phan mem snippets", "thu phan le snippets", "thu phan 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: (((("thu phan me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu phan me snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu phan me snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu phan me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.