Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"x luong theo snippets" » "x luong thi snippets", "_ luong theo snippets", "do luong theo snippets", "ly luong theo snippets", "x luong theo slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("x luong theo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("x luong theo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( x luong theo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("x luong theo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.