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