Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi mui chat snippets" » "thi muc chat snippets", "thi bui nhat snippets", "thi cuu chat snippets", "thi mai chat snippets", "tai mui chat snippets", "thi moi 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: (((("thi mui 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: (((("thi mui chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi mui chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi mui chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.