Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"fan mo cong snippets" » "fan moi cong snippets", "fan mot cong snippets", "fan mo rong snippets", "dan mo cong snippets", "ran mo cong snippets", "van mo 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: (((("fan mo 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: (((("fan mo cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( fan mo cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("fan mo cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.