Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len thoi co snippets" » "len troi co snippets", "ren thoi co snippets", "le thoi co snippets", "len hoi co snippets", "len thong co snippets", "len choi cho 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: (((("len thoi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("len thoi co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len thoi co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len thoi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.