Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim voi cong snippets" » "kim noi cong snippets", "kim moi cong snippets", "kim tai cong snippets", "kim boi cong snippets", "kim loai 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: (((("kim voi 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: (((("kim voi cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim voi cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim voi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.