Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nen hay cho snippets" » "nen than cho snippets", "ngan hay cho snippets", "nen day cho snippets", "nen han cho snippets", "nen cay 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: (((("nen hay 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: (((("nen hay cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nen hay cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nen hay cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.