Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu cua phe snippets" » "thuc cua phe snippets", "hu cua phe snippets", "tu cua phe snippets", "thu ca phe snippets", "thu cua che snippets", "thu cua he 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 cua phe 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 cua phe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu cua phe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu cua phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.