Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua tru du snippets" » "ca tru du snippets", "cua tu du snippets", "cu tru du snippets", "cua truc du snippets", "cua tru su 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: (((("cua tru 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: (((("cua tru du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua tru du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua tru du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.