Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tin voi chat snippets" » "tin voi nhat snippets", "tin van chat snippets", "tin hop chat snippets", "tien voi chat snippets", "tinh voi chat snippets", "tan voi chat 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: (((("tin voi chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tin voi chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tin voi chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tin voi chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.