Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhut de cho snippets" » "nhat de cho snippets", "thuat de cho snippets", "nhut de co snippets", "nhut de che snippets", "nhut ke 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: (((("nhut de 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: (((("nhut de cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhut de cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhut de cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.