Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vo luan chat snippets" » "vo luan chi snippets", "vo van chat snippets", "vo luan phan snippets", "von luan chat snippets", "vo xuan chat snippets", "o luan chat snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("vo luan chat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("vo luan chat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( vo luan chat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("vo luan chat snippets"))) or ("locating bug code snippets"))*.