Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung san co snippets" » "nhung van co snippets", "nhung lan co snippets", "nhung lang co snippets", "nhung ban co snippets", "nhung sang 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 san 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: (((("nhung san co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung san co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung san co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.