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