Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dac con cho snippets" » "day con cho snippets", "dac co cho snippets", "duc con cho snippets", "dac cong cho snippets", "dac ton cho snippets", "dac con chi 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: (((("dac con 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: (((("dac con cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dac con cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac con cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.