Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ian cho cong snippets" » "ian cao cong snippets", "ian cua cong snippets", "ian cac cong snippets", "san cho cong snippets", "van cho cong snippets", "han cho 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: (((("ian cho 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: (((("ian cho cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ian cho cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ian cho cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.