Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat theo chu snippets" » "dai theo chu snippets", "dam theo chu snippets", "dau theo chu snippets", "dat theo chieu snippets", "dat cho chu snippets", "dat chao chu 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: (((("dat theo chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat theo chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat theo chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat theo chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.