Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao so cong snippets" » "hao bo cong snippets", "hao cao cong snippets", "hao hoc cong snippets", "ho so cong snippets", "hai so cong snippets", "ham so 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: (((("hao so 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: (((("hao so cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao so cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao so cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.