Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu nam cap snippets" » "tu nam cap snippets", "thu nhap cap snippets", "thu nhat cap snippets", "thu nam cao snippets", "thu nam cac snippets", "thu nam ap 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 nam cap 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 nam cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu nam cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu nam cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.