Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac qua phe snippets" » "cau qua phe snippets", "tac quan phe snippets", "cac qua phuc snippets", "cac qua nghe snippets", "cac qua phan 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: (((("cac qua phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac qua phe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac qua phe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac qua phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.