Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac song du snippets" » "cac cong du snippets", "cac dong du snippets", "can song du snippets", "cac song da snippets", "cac mong du snippets", "cac song ngu 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 song du 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 song du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac song du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac song du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.