Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao doi cong snippets" » "nao doi song snippets", "nao noi cong snippets", "nao moi cong snippets", "nam doi cong snippets", "tao doi cong 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: (((("nao doi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nao doi cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao doi cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao doi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.