Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu noi cho snippets" » "thuy noi cho snippets", "thu hoi cho snippets", "tho noi cho snippets", "thu moi cho snippets", "thu noi co 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 noi cho 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 noi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu noi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu noi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.