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