Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe te can snippets" » "nghe tu can snippets", "nghe theu can snippets", "nghiem te can snippets", "nghe te chan snippets", "nghe tre can snippets", "nghe te ban 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: (((("nghe te can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nghe te can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe te can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe te can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.