Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh voi chat snippets" » "anh voi nhat snippets", "anh van chat snippets", "anh hop chat snippets", "hanh voi chat snippets", "lanh voi chat snippets", "anh noi 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: (((("anh 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: (((("anh voi chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh voi chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh voi chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.