Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu cuc toi snippets" » "thi cuc toi snippets", "thu tuc toi snippets", "thu cua toi snippets", "thu cac toi snippets", "thu cui toi 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: (((("thu cuc toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu cuc toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu cuc toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu cuc toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.