Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tim hang du snippets" » "tim hanh du snippets", "tim tang du snippets", "hiem hang du snippets", "tim hang dau snippets", "tim hoang du snippets", "tim nang du 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: (((("tim hang 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: (((("tim hang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tim hang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tim hang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.